Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Libby Miller

Bib: 16524FAge: N/A

MD

Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 29021
Top 46%
Gender (Female)
#0 / 12578
Top 32%
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds
Unlock Your Full

AI Performance Report

New

Understand What Really Happened During Your Race

Go deeper with personalized analysis powered by your official race data.

Your AI Performance Report includes:
  • Fatigue & pacing analysis
  • Finish time optimization
  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
Shareable via link — view it anywhere, share with anyone
AI Report Preview
Generating your preview…
$4.99
One-time purchase for this race
Includes a shareable link

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
23:19
3.11 mi
Rank: #12840
Start5K
23:19 | 7:31/mi
10K
47:04
6.21 mi
Rank: #13511 (-671)
5K10K
23:45 | 7:39/mi
15K
1:11:40
9.32 mi
Rank: #14452 (-941)
10K15K
24:36 | 7:56/mi
20K
1:35:45
12.43 mi
Rank: #14346 (+106)
15K20K
24:05 | 7:46/mi
HALF
1:41:01
13.11 mi
Rank: #14370 (-24)
20KHALF
5:16 | 7:44/mi
25K
2:00:02
15.53 mi
Rank: #14304 (+66)
HALF25K
19:01 | 7:51/mi
30K
2:25:04
18.64 mi
Rank: #14217 (+87)
25K30K
25:02 | 8:04/mi
20M
2:35:44
20.00 mi
Rank: #13977 (+240)
30K20M
10:40 | 7:52/mi
21M
2:43:55
21.00 mi
Rank: #13788 (+189)
20M21M
8:11 | 8:11/mi
35K
2:49:33
21.75 mi
Rank: #13670 (+118)
21M35K
5:38 | 7:32/mi
23M
2:59:21
23.00 mi
Rank: #13501 (+169)
35K23M
9:48 | 7:50/mi
24M
3:07:00
24.00 mi
Rank: #13378 (+123)
23M24M
7:39 | 7:39/mi
40K
3:13:53
24.85 mi
Rank: #13343 (+35)
24M40K
6:53 | 8:04/mi
25.2M
3:16:54
25.20 mi
Rank: #13334 (+9)
40K25.2M
3:01 | 8:45/mi
FINISH
3:24:57
26.22 mi
Rank: #13359 (-25)
25.2MFINISH
8:03 | 7:54/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:01
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:43:56
Pace7:56 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:2523:197:3123:19
7:31
-
10K
6.21 mi11:28:1047:047:3523:45
7:39
+0:08
15K
9.32 mi11:52:461:11:407:4224:36
7:56
+0:17
20K
12.43 mi12:16:511:35:457:4324:05
7:46
-0:10
HALF
13.11 mi12:22:071:41:017:435:16
7:44
-0:02
25K
15.53 mi12:41:082:00:027:4419:01
7:51
+0:07
30K
18.64 mi13:06:102:25:047:4725:02
8:04
+0:13
20M
20.00 mi13:16:502:35:447:4810:40
7:52
-0:12
21M
21.00 mi13:25:012:43:557:498:11
8:11
+0:19
35K
21.75 mi13:30:392:49:337:485:38
7:32
-0:39
23M
23.00 mi13:40:272:59:217:489:48
7:50
+0:18
24M
24.00 mi13:48:063:07:007:487:39
7:39
-0:11
40K
24.85 mi13:54:593:13:537:496:53
8:04
+0:25
25.2M
25.20 mi13:58:003:16:547:493:01
8:45
+0:41
FINISH
26.22 mi14:06:033:24:577:508:03
7:54
-0:51

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

7:31 /mi

Average Pace

7:49 /mi

Slowest Pace

8:45 /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

3:21:56

99% of race

Time at Steady Pace

3:01

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi11:04:2523:197:3123:19
7:31
#12840
10K
6.21 mi11:28:1047:047:3523:45
7:39
#13511
15K
9.32 mi11:52:461:11:407:4224:36
7:56
#14452
20K
12.43 mi12:16:511:35:457:4324:05
7:46
#14346
HALF
13.11 mi12:22:071:41:017:435:16
7:44
#14370
25K
15.53 mi12:41:082:00:027:4419:01
7:51
#14304
30K
18.64 mi13:06:102:25:047:4725:02
8:04
#14217
20M
20.00 mi13:16:502:35:447:4810:40
7:52
#13977
21M
21.00 mi13:25:012:43:557:498:11
8:11
#13788
35K
21.75 mi13:30:392:49:337:485:38
7:32
#13670
23M
23.00 mi13:40:272:59:217:489:48
7:50
#13501
24M
24.00 mi13:48:063:07:007:487:39
7:39
#13378
40K
24.85 mi13:54:593:13:537:496:53
8:04
#13343
25.2M
25.20 mi13:58:003:16:547:493:01
8:45
#13334
FINISH
26.22 mi14:06:033:24:577:508:03
7:54
#13359
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 mi128403395339516362(Top 56%)5541(Top 44%)5541(Top 97%)
10K6.21 mi3.10 mi13511-6713811-4163811-41614295(Top 49%)4295(Top 34%)4295(Top 75%)
15K9.32 mi3.11 mi14452-9414391-5804391-58016362(Top 56%)5541(Top 44%)5541(Top 97%)
20K12.43 mi3.11 mi14346+1064338+534338+5314152(Top 49%)4292(Top 34%)4292(Top 75%)
HALF13.11 mi0.68 mi14370-244356-184356-1814965(Top 52%)4686(Top 37%)4686(Top 82%)
25K15.53 mi2.42 mi14304+664344+124344+1214172(Top 49%)4394(Top 35%)4394(Top 77%)
30K18.64 mi3.11 mi14217+874338+64338+613932(Top 48%)4359(Top 35%)4359(Top 76%)
20M20.00 mi1.36 mi13977+2404216+1224216+12211770(Top 41%)3287(Top 26%)3287(Top 58%)
21M21.00 mi1.00 mi13788+1894133+834133+8311133(Top 38%)3061(Top 24%)3061(Top 54%)
35K21.75 mi0.75 mi13670+1184085+484085+4811171(Top 38%)3105(Top 25%)3105(Top 54%)
23M23.00 mi1.25 mi13501+1694021+644021+6411277(Top 39%)3257(Top 26%)3257(Top 57%)
24M24.00 mi1.00 mi13378+1233975+463975+4611240(Top 39%)3304(Top 26%)3304(Top 58%)
40K24.85 mi0.85 mi13343+353976-13976-112870(Top 44%)4253(Top 34%)4253(Top 74%)
25.2M25.20 mi0.35 mi13334+93979-33979-313262(Top 46%)4494(Top 36%)4494(Top 79%)
FINISH26.22 mi1.02 mi13359-254021-424021-4214509(Top 50%)5179(Top 41%)5179(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21
+97ft-345ft

Overall

16362

Females

5541

F18-39

5541

5K→10K

3.1 - 6.2 mi

Top 49%
×5
+79ft-138ft

Overall

14295

Females

4295

F18-39

4295

10K→15K

6.2 - 9.3 mi

Top 56%
×3
+67ft-78ft

Overall

16362

Females

5541

F18-39

5541

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14152

Females

4292

F18-39

4292

20K→HALF

12.4 - 13.1 mi

Top 52%
×2
+19ft-37ft

Overall

14965

Females

4686

F18-39

4686

HALF→25K

13.1 - 15.5 mi

Top 49%
×4
+66ft-88ft

Overall

14172

Females

4394

F18-39

4394

25K→30K

15.5 - 18.6 mi

Top 48%
×9
+181ft-148ft

Overall

13932

Females

4359

F18-39

4359

30K→20M

18.6 - 20.0 mi

Top 41%
×5
+64ft-50ft

Overall

11770

Females

3287

F18-39

3287

20M→21M

20.0 - 21.0 mi

Top 38%
×8
+106ft-24ft

Overall

11133

Females

3061

F18-39

3061

21M→35K

21.0 - 21.8 mi

Top 38%
×7
+17ft-86ft

Overall

11171

Females

3105

F18-39

3105

35K→23M

21.8 - 23.0 mi

Top 39%
×5
+23ft-63ft

Overall

11277

Females

3257

F18-39

3257

23M→24M

23.0 - 24.0 mi

Top 39%
×6
+12ft-82ft

Overall

11240

Females

3304

F18-39

3304

24M→40K

24.0 - 24.9 mi

Top 44%
×1
+6ft-20ft

Overall

12870

Females

4253

F18-39

4253

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1
+13ft-16ft

Overall

13262

Females

4494

F18-39

4494

25.2M→FINISH

25.2 - 26.2 mi

Top 50%
×2
+22ft-21ft

Overall

14509

Females

5179

F18-39

5179

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1832*
Passed By
1020
Net Change
-519
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12840
5K10K79200-671#12840#13511
10K15K40200-941#13511#14452
15K20K207*101+106#14452#14346
20KHALF1842-24#14346#14370
HALF25K169103+66#14370#14304
25K30K230*143+87#14304#14217
30K20M245*5+240#14217#13977
20M21M203*14+189#13977#13788
21M35K1257+118#13788#13670
35K23M18819+169#13670#13501
23M24M14118+123#13501#13378
24M40K8045+35#13378#13343
40K25.2M4132+9#13343#13334
25.2MFINISH6691-25#13334#13359
TOTALS1832*1020-519

* 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