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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jessica Lefford

Bib: 16691 •F •Age: N/A

CO

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Top 28%
Gender (Female)
#0 / 12578
Top 11%
Age Group (F18-39)
#0 / 5716
Top 20%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Jessica

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 · 6:40/mi at mile 26.2

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
22:57
3.11 mi
Rank: #11828
Start → 5K
22:57 | 7:24/mi
10K
44:49
6.21 mi
Rank: #10318 (+1510)
5K → 10K
21:52 | 7:03/mi
15K
1:06:24
9.32 mi
Rank: #9473 (+845)
10K → 15K
21:35 | 6:57/mi
20K
1:27:58
12.43 mi
Rank: #8937 (+536)
15K → 20K
21:34 | 6:57/mi
HALF
1:32:43
13.11 mi
Rank: #8908 (+29)
20K → HALF
4:45 | 6:59/mi
25K
1:49:46
15.53 mi
Rank: #8657 (+251)
HALF → 25K
17:03 | 7:02/mi
30K
2:12:34
18.64 mi
Rank: #8513 (+144)
25K → 30K
22:48 | 7:21/mi
20M
2:22:18
20.00 mi
Rank: #8335 (+178)
30K → 20M
9:44 | 7:10/mi
21M
2:30:25
21.00 mi
Rank: #8415 (-80)
20M → 21M
8:07 | 8:07/mi
35K
2:35:52
21.75 mi
Rank: #8417 (-2)
21M → 35K
5:27 | 7:18/mi
23M
2:45:06
23.00 mi
Rank: #8334 (+83)
35K → 23M
9:14 | 7:23/mi
24M
2:52:14
24.00 mi
Rank: #8244 (+90)
23M → 24M
7:08 | 7:08/mi
40K
2:58:31
24.85 mi
Rank: #8221 (+23)
24M → 40K
6:17 | 7:21/mi
25.2M
3:01:09
25.20 mi
Rank: #8160 (+61)
40K → 25.2M
2:38 | 7:39/mi
FINISH
3:07:57
26.22 mi
Rank: #7986 (+174)
25.2M → FINISH
6:48 | 6:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:32:43
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:35:14
Pace7:16 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:3322:577:2422:57
7:24
-
10K
6.21 mi11:26:2544:497:1321:52
7:03
-0:21
15K
9.32 mi11:48:001:06:247:0821:35
6:57
-0:06
20K
12.43 mi12:09:341:27:587:0521:34
6:57
0:00
HALF
13.11 mi12:14:191:32:437:054:45
6:59
+0:02
25K
15.53 mi12:31:221:49:467:0417:03
7:02
+0:03
30K
18.64 mi12:54:102:12:347:0722:48
7:21
+0:19
20M
20.00 mi13:03:542:22:187:079:44
7:10
-0:11
21M
21.00 mi13:12:012:30:257:108:07
8:07
+0:57
35K
21.75 mi13:17:282:35:527:115:27
7:18
-0:49
23M
23.00 mi13:26:422:45:067:119:14
7:23
+0:05
24M
24.00 mi13:33:502:52:147:117:08
7:08
-0:15
40K
24.85 mi13:40:072:58:317:116:17
7:21
+0:13
25.2M
25.20 mi13:42:453:01:097:122:38
7:39
+0:18
FINISH
26.22 mi13:49:333:07:577:116:48
6:41
-0:58

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

6:41 /mi

Average Pace

7:10 /mi

Slowest Pace

8:07 /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

54:42

29% of race

Time at Steady Pace

1:01:14

33% of race

Time at Slower Pace

1:12:01

38% of race

Average Pace: 7:10 /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 mi11:04:3322:577:2422:57
7:24
#11828
10K
6.21 mi11:26:2544:497:1321:52
7:03
#10318
15K
9.32 mi11:48:001:06:247:0821:35
6:57
#9473
20K
12.43 mi12:09:341:27:587:0521:34
6:57
#8937
HALF
13.11 mi12:14:191:32:437:054:45
6:59
#8908
25K
15.53 mi12:31:221:49:467:0417:03
7:02
#8657
30K
18.64 mi12:54:102:12:347:0722:48
7:21
#8513
20M
20.00 mi13:03:542:22:187:079:44
7:10
#8335
21M
21.00 mi13:12:012:30:257:108:07
8:07
#8415
35K
21.75 mi13:17:282:35:527:115:27
7:18
#8417
23M
23.00 mi13:26:422:45:067:119:14
7:23
#8334
24M
24.00 mi13:33:502:52:147:117:08
7:08
#8244
40K
24.85 mi13:40:072:58:317:116:17
7:21
#8221
25.2M
25.20 mi13:42:453:01:097:122:38
7:39
#8160
FINISH
26.22 mi13:49:333:07:577:116:48
6:41
#7986
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 mi11828281028108211(Top 28%)1190(Top 9%)1190(Top 21%)
10K6.21 mi3.10 mi10318+15102055+7552055+7558973(Top 31%)1463(Top 12%)1463(Top 26%)
15K9.32 mi3.11 mi9473+8451651+4041651+4048211(Top 28%)1190(Top 9%)1190(Top 21%)
20K12.43 mi3.11 mi8937+5361454+1971454+1977471(Top 26%)970(Top 8%)970(Top 17%)
HALF13.11 mi0.68 mi8908+291441+131441+138499(Top 29%)1302(Top 10%)1302(Top 23%)
25K15.53 mi2.42 mi8657+2511367+741367+747635(Top 26%)1076(Top 9%)1076(Top 19%)
30K18.64 mi3.11 mi8513+1441352+151352+158406(Top 29%)1549(Top 12%)1549(Top 27%)
20M20.00 mi1.36 mi8335+1781306+461306+466755(Top 23%)992(Top 8%)992(Top 17%)
21M21.00 mi1.00 mi8415-801365-591365-5910658(Top 37%)2806(Top 22%)2806(Top 49%)
35K21.75 mi0.75 mi8417-21382-171382-179220(Top 32%)2104(Top 17%)2104(Top 37%)
23M23.00 mi1.25 mi8334+831381+11381+17986(Top 28%)1623(Top 13%)1623(Top 28%)
24M24.00 mi1.00 mi8244+901369+121369+127412(Top 26%)1464(Top 12%)1464(Top 26%)
40K24.85 mi0.85 mi8221+231388-191388-197822(Top 27%)1713(Top 14%)1713(Top 30%)
25.2M25.20 mi0.35 mi8160+611377+111377+116137(Top 21%)1120(Top 9%)1120(Top 20%)
FINISH26.22 mi1.02 mi7986+1741333+441333+445303(Top 18%)888(Top 7%)888(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21
+97ft-345ft

Overall

8211

Females

1190

F18-39

1190

5K→10K

3.1 - 6.2 mi

Top 31%
×5
+79ft-138ft

Overall

8973

Females

1463

F18-39

1463

10K→15K

6.2 - 9.3 mi

Top 28%
×3
+67ft-78ft

Overall

8211

Females

1190

F18-39

1190

15K→20K

9.3 - 12.4 mi

Top 26%
×5
+106ft-86ft

Overall

7471

Females

970

F18-39

970

20K→HALF

12.4 - 13.1 mi

Top 29%
×2
+19ft-37ft

Overall

8499

Females

1302

F18-39

1302

HALF→25K

13.1 - 15.5 mi

Top 26%
×4
+66ft-88ft

Overall

7635

Females

1076

F18-39

1076

25K→30K

15.5 - 18.6 mi

Top 29%
×9
+181ft-148ft

Overall

8406

Females

1549

F18-39

1549

30K→20M

18.6 - 20.0 mi

Top 23%
×5
+64ft-50ft

Overall

6755

Females

992

F18-39

992

20M→21M

20.0 - 21.0 mi

Top 37%
×8
+106ft-24ft

Overall

10658

Females

2806

F18-39

2806

21M→35K

21.0 - 21.8 mi

Top 32%
×7
+17ft-86ft

Overall

9220

Females

2104

F18-39

2104

35K→23M

21.8 - 23.0 mi

Top 28%
×5
+23ft-63ft

Overall

7986

Females

1623

F18-39

1623

23M→24M

23.0 - 24.0 mi

Top 26%
×6
+12ft-82ft

Overall

7412

Females

1464

F18-39

1464

24M→40K

24.0 - 24.9 mi

Top 27%
×1
+6ft-20ft

Overall

7822

Females

1713

F18-39

1713

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1
+13ft-16ft

Overall

6137

Females

1120

F18-39

1120

25.2M→FINISH

25.2 - 26.2 mi

Top 18%
×2
+22ft-21ft

Overall

5303

Females

888

F18-39

888

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4300*
Passed By
458
Net Change
+3842
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11828
5K → 10K1522*12+1510#11828#10318
10K → 15K851*6+845#10318#9473
15K → 20K543*7+536#9473#8937
20K → HALF4011+29#8937#8908
HALF → 25K265*14+251#8908#8657
25K → 30K233*89+144#8657#8513
30K → 20M18810+178#8513#8335
20M → 21M51131-80#8335#8415
21M → 35K5153-2#8415#8417
35K → 23M12138+83#8417#8334
23M → 24M11525+90#8334#8244
24M → 40K6946+23#8244#8221
40K → 25.2M687+61#8221#8160
25.2M → FINISH1839+174#8160#7986
TOTALS4300*458+3842

* 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

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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