All Results|Race Analytics|Course|Contact

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jillian Williamson

Bib: 28200 •F •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds
Personalized for Jillian

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 9:19/mi at mile 13.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
One-time purchase · Instant access · Downloadable PDF · Shareable report

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
30:22
3.11 mi
Rank: #25312
Start → 5K
30:22 | 9:47/mi
10K
59:49
6.21 mi
Rank: #24896 (+416)
5K → 10K
29:27 | 9:29/mi
15K
1:29:42
9.32 mi
Rank: #24835 (+61)
10K → 15K
29:53 | 9:38/mi
20K
1:59:59
12.43 mi
Rank: #24741 (+94)
15K → 20K
30:17 | 9:45/mi
HALF
2:06:20
13.11 mi
Rank: #24697 (+44)
20K → HALF
6:21 | 9:19/mi
25K
2:30:01
15.53 mi
Rank: #24537 (+160)
HALF → 25K
23:41 | 9:46/mi
30K
3:01:28
18.64 mi
Rank: #24309 (+228)
25K → 30K
31:27 | 10:08/mi
20M
3:15:53
20.00 mi
Rank: #24286 (+23)
30K → 20M
14:25 | 10:37/mi
21M
3:27:04
21.00 mi
Rank: #24233 (+53)
20M → 21M
11:11 | 11:11/mi
35K
3:35:04
21.75 mi
Rank: #24267 (-34)
21M → 35K
8:00 | 10:42/mi
23M
3:48:42
23.00 mi
Rank: #24263 (+4)
35K → 23M
13:38 | 10:54/mi
24M
3:59:08
24.00 mi
Rank: #24223 (+40)
23M → 24M
10:26 | 10:26/mi
40K
4:08:20
24.85 mi
Rank: #24201 (+22)
24M → 40K
9:12 | 10:46/mi
25.2M
4:12:14
25.20 mi
Rank: #24181 (+20)
40K → 25.2M
3:54 | 11:19/mi
FINISH
4:22:17
26.22 mi
Rank: #24161 (+20)
25.2M → FINISH
10:03 | 9:52/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:06:20
Pace9:39 /mi
2nd Half
Distance13.11 mi
Time2:15:57
Pace10:23 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:3530:229:4730:22
9:47
-
10K
6.21 mi12:26:0259:499:3829:27
9:29
-0:18
15K
9.32 mi12:55:551:29:429:3829:53
9:38
+0:09
20K
12.43 mi13:26:121:59:599:4030:17
9:45
+0:07
HALF
13.11 mi13:32:332:06:209:396:21
9:19
-0:26
25K
15.53 mi13:56:142:30:019:4023:41
9:46
+0:27
30K
18.64 mi14:27:413:01:289:4531:27
10:08
+0:22
20M
20.00 mi14:42:063:15:539:4814:25
10:37
+0:29
21M
21.00 mi14:53:173:27:049:5211:11
11:11
+0:34
35K
21.75 mi15:01:173:35:049:548:00
10:42
-0:29
23M
23.00 mi15:14:553:48:429:5713:38
10:54
+0:12
24M
24.00 mi15:25:213:59:089:5810:26
10:26
-0:28
40K
24.85 mi15:34:334:08:2010:009:12
10:46
+0:20
25.2M
25.20 mi15:38:274:12:1410:013:54
11:19
+0:33
FINISH
26.22 mi15:48:304:22:1710:0110:03
9:52
-1:27

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:19 /mi

Average Pace

10:01 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:30:01

57% of race

Time at Steady Pace

51:56

20% of race

Time at Slower Pace

1:00:20

23% of race

Average Pace: 10:00 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:56:3530:229:4730:22
9:47
#25312
10K
6.21 mi12:26:0259:499:3829:27
9:29
#24896
15K
9.32 mi12:55:551:29:429:3829:53
9:38
#24835
20K
12.43 mi13:26:121:59:599:4030:17
9:45
#24741
HALF
13.11 mi13:32:332:06:209:396:21
9:19
#24697
25K
15.53 mi13:56:142:30:019:4023:41
9:46
#24537
30K
18.64 mi14:27:413:01:289:4531:27
10:08
#24309
20M
20.00 mi14:42:063:15:539:4814:25
10:37
#24286
21M
21.00 mi14:53:173:27:049:5211:11
11:11
#24233
35K
21.75 mi15:01:173:35:049:548:00
10:42
#24267
23M
23.00 mi15:14:553:48:429:5713:38
10:54
#24263
24M
24.00 mi15:25:213:59:089:5810:26
10:26
#24223
40K
24.85 mi15:34:334:08:2010:009:12
10:46
#24201
25.2M
25.20 mi15:38:274:12:1410:013:54
11:19
#24181
FINISH
26.22 mi15:48:304:22:1710:0110:03
9:52
#24161
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25312103401034024758(Top 85%)10052(Top 80%)10052(Top 176%)
10K6.21 mi3.10 mi24896+41610119+22110119+22124527(Top 85%)9928(Top 79%)9928(Top 174%)
15K9.32 mi3.11 mi24835+6110086+3310086+3324758(Top 85%)10052(Top 80%)10052(Top 176%)
20K12.43 mi3.11 mi24741+9410042+4410042+4424436(Top 84%)9899(Top 79%)9899(Top 173%)
HALF13.11 mi0.68 mi24697+4410016+2610016+2623873(Top 82%)9622(Top 76%)9622(Top 168%)
25K15.53 mi2.42 mi24537+1609943+739943+7323737(Top 82%)9585(Top 76%)9585(Top 168%)
30K18.64 mi3.11 mi24309+2289855+889855+8823441(Top 81%)9533(Top 76%)9533(Top 167%)
20M20.00 mi1.36 mi24286+239855985524108(Top 83%)9972(Top 79%)9972(Top 174%)
21M21.00 mi1.00 mi24233+539844+119844+1123527(Top 81%)9703(Top 77%)9703(Top 170%)
35K21.75 mi0.75 mi24267-349873-299873-2924688(Top 85%)10354(Top 82%)10354(Top 181%)
23M23.00 mi1.25 mi24263+49893-209893-2024276(Top 84%)10190(Top 81%)10190(Top 178%)
24M24.00 mi1.00 mi24223+409897-49897-423953(Top 83%)10053(Top 80%)10053(Top 176%)
40K24.85 mi0.85 mi24201+229895+29895+223787(Top 82%)10023(Top 80%)10023(Top 175%)
25.2M25.20 mi0.35 mi24181+209892+39892+323141(Top 80%)9688(Top 77%)9688(Top 169%)
FINISH26.22 mi1.02 mi24161+209899-79899-723492(Top 81%)9870(Top 78%)9870(Top 173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21
+97ft-345ft

Overall

24758

Females

10052

F18-39

10052

5K→10K

3.1 - 6.2 mi

Top 85%
×5
+79ft-138ft

Overall

24527

Females

9928

F18-39

9928

10K→15K

6.2 - 9.3 mi

Top 85%
×3
+67ft-78ft

Overall

24758

Females

10052

F18-39

10052

15K→20K

9.3 - 12.4 mi

Top 84%
×5
+106ft-86ft

Overall

24436

Females

9899

F18-39

9899

20K→HALF

12.4 - 13.1 mi

Top 82%
×2
+19ft-37ft

Overall

23873

Females

9622

F18-39

9622

HALF→25K

13.1 - 15.5 mi

Top 82%
×4
+66ft-88ft

Overall

23737

Females

9585

F18-39

9585

25K→30K

15.5 - 18.6 mi

Top 81%
×9
+181ft-148ft

Overall

23441

Females

9533

F18-39

9533

30K→20M

18.6 - 20.0 mi

Top 83%
×5
+64ft-50ft

Overall

24108

Females

9972

F18-39

9972

20M→21M

20.0 - 21.0 mi

Top 81%
×8
+106ft-24ft

Overall

23527

Females

9703

F18-39

9703

21M→35K

21.0 - 21.8 mi

Top 85%
×7
+17ft-86ft

Overall

24688

Females

10354

F18-39

10354

35K→23M

21.8 - 23.0 mi

Top 84%
×5
+23ft-63ft

Overall

24276

Females

10190

F18-39

10190

23M→24M

23.0 - 24.0 mi

Top 83%
×6
+12ft-82ft

Overall

23953

Females

10053

F18-39

10053

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23787

Females

10023

F18-39

10023

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1
+13ft-16ft

Overall

23141

Females

9688

F18-39

9688

25.2M→FINISH

25.2 - 26.2 mi

Top 81%
×2
+22ft-21ft

Overall

23492

Females

9870

F18-39

9870

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1785*
Passed By
634
Net Change
+1151
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25312
5K → 10K491*75+416#25312#24896
10K → 15K163102+61#24896#24835
15K → 20K16672+94#24835#24741
20K → HALF473+44#24741#24697
HALF → 25K18626+160#24697#24537
25K → 30K269*41+228#24537#24309
30K → 20M7855+23#24309#24286
20M → 21M9441+53#24286#24233
21M → 35K2155-34#24233#24267
35K → 23M6662+4#24267#24263
23M → 24M7232+40#24263#24223
24M → 40K5634+22#24223#24201
40K → 25.2M299+20#24201#24181
25.2M → FINISH4727+20#24181#24161
TOTALS1785*634+1151

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback