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BOSTON MARATHON 2025

Jessica Lester-Brown

Bib: 13380•F

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0:00
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:24
Rank: #12533
Start → 5K
23:24 | 7:32/mi
10K· 6.21 mi
46:35
Rank: #12112 (+421)
5K → 10K
23:11 | 7:28/mi
15K· 9.32 mi
1:09:51
Rank: #11934 (+178)
10K → 15K
23:16 | 7:29/mi
20K· 12.43 mi
1:33:18
Rank: #11700 (+234)
15K → 20K
23:27 | 7:33/mi
Half· 13.11 mi
1:38:23
Rank: #11691 (+9)
20K → Half
5:05 | 7:27/mi
25K· 15.53 mi
1:57:50
Rank: #12055 (-364)
Half → 25K
19:27 | 8:01/mi
30K· 18.64 mi
2:22:49
Rank: #11922 (+133)
25K → 30K
24:59 | 8:02/mi
20M
2:33:50
Rank: #11833 (+89)
30K → 20M
11:01 | 8:06/mi
21M
2:42:29
Rank: #11791 (+42)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:48:28
Rank: #11800 (-9)
21M → 35K
5:59 | 8:00/mi
23M
2:59:33
Rank: #12016 (-216)
35K → 23M
11:05 | 8:51/mi
24M
3:07:32
Rank: #11956 (+60)
23M → 24M
7:59 | 7:59/mi
40K· 24.85 mi
3:14:25
Rank: #11879 (+77)
24M → 40K
6:53 | 8:03/mi
25.2M
3:17:29
Rank: #11864 (+15)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:25:13
Rank: #11756 (+108)
25.2M → Finish
7:44 | 7:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:23
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:46:50
Pace8:09 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3123:247:3223:24
7:32
-
10K
6.21 mi11:16:4246:357:3023:11
7:28
-0:04
15K
9.32 mi11:39:581:09:517:3023:16
7:29
+0:01
20K
12.43 mi12:03:251:33:187:3023:27
7:33
+0:04
Half
13.11 mi12:08:301:38:237:305:05
7:27
-0:06
25K
15.53 mi12:27:571:57:507:3519:27
8:01
+0:34
30K
18.64 mi12:52:562:22:497:4024:59
8:02
+0:01
20M
20.00 mi13:03:572:33:507:4111:01
8:06
+0:04
21M
21.00 mi13:12:362:42:297:448:39
8:39
+0:33
35K
21.75 mi13:18:352:48:287:455:59
8:00
-0:39
23M
23.00 mi13:29:402:59:337:4811:05
8:51
+0:51
24M
24.00 mi13:37:393:07:327:497:59
7:59
-0:52
40K
24.85 mi13:44:323:14:257:496:53
8:03
+0:04
25.2M
25.20 mi13:47:363:17:297:503:04
8:54
+0:51
Finish
26.22 mi13:55:203:25:137:507:44
7:35
-1:19

Checkpoints & Pacing

📈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

7:27 /mi

Average Pace

7:50 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:25

89% of race

Time at Steady Pace

8:39

4% of race

Time at Slower Pace

14:09

7% of race

Average Pace: 7:50 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:53:3123:247:3223:24
7:32
#12533
10K
6.21 mi11:16:4246:357:3023:11
7:28
#12112
15K
9.32 mi11:39:581:09:517:3023:16
7:29
#11934
20K
12.43 mi12:03:251:33:187:3023:27
7:33
#11700
Half
13.11 mi12:08:301:38:237:305:05
7:27
#11691
25K
15.53 mi12:27:571:57:507:3519:27
8:01
#12055
30K
18.64 mi12:52:562:22:497:4024:59
8:02
#11922
20M
20.00 mi13:03:572:33:507:4111:01
8:06
#11833
21M
21.00 mi13:12:362:42:297:448:39
8:39
#11791
35K
21.75 mi13:18:352:48:287:455:59
8:00
#11800
23M
23.00 mi13:29:402:59:337:4811:05
8:51
#12016
24M
24.00 mi13:37:393:07:327:497:59
7:59
#11956
40K
24.85 mi13:44:323:14:257:496:53
8:03
#11879
25.2M
25.20 mi13:47:363:17:297:503:04
8:54
#11864
Finish
26.22 mi13:55:203:25:137:507:44
7:35
#11756
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi125333080308011695(Top 41%)2741(Top 22%)2741(Top 50%)
10K6.21 mi3.10 mi12112+4212869+2112869+21111750(Top 41%)2692(Top 22%)2692(Top 49%)
15K9.32 mi3.11 mi11934+1782791+782791+7811695(Top 41%)2741(Top 22%)2741(Top 50%)
20K12.43 mi3.11 mi11700+2342715+762715+7611169(Top 39%)2570(Top 21%)2570(Top 47%)
Half13.11 mi0.68 mi11691+92712+32712+311404(Top 40%)2649(Top 22%)2649(Top 48%)
25K15.53 mi2.42 mi12055-3642948-2362948-23614073(Top 50%)4233(Top 35%)4233(Top 77%)
30K18.64 mi3.11 mi11922+1332955-72955-711689(Top 41%)3137(Top 26%)3137(Top 57%)
20M20.00 mi1.36 mi11833+892943+122943+1211184(Top 39%)3032(Top 25%)3032(Top 55%)
21M21.00 mi1.00 mi11791+422962-192962-1911395(Top 40%)3296(Top 27%)3296(Top 60%)
35K21.75 mi0.75 mi11800-92990-282990-2812270(Top 43%)3777(Top 31%)3777(Top 69%)
23M23.00 mi1.25 mi12016-2163141-1513141-15115408(Top 54%)5542(Top 45%)5542(Top 101%)
24M24.00 mi1.00 mi11956+603146-53146-511141(Top 39%)3373(Top 28%)3373(Top 62%)
40K24.85 mi0.85 mi11879+773147-13147-110583(Top 37%)3207(Top 26%)3207(Top 59%)
25.2M25.20 mi0.35 mi11864+153155-83155-811241(Top 40%)3615(Top 30%)3615(Top 66%)
Finish26.22 mi1.02 mi11756+1083134+213134+219874(Top 35%)2933(Top 24%)2933(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11695

Females

2741

F18-39

2741

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11750

Females

2692

F18-39

2692

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11695

Females

2741

F18-39

2741

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

11169

Females

2570

F18-39

2570

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

11404

Females

2649

F18-39

2649

Half→25K

13.1 - 15.5 mi

Top 50%
×4stories
+66ft-88ft

Overall

14073

Females

4233

F18-39

4233

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11689

Females

3137

F18-39

3137

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

11184

Females

3032

F18-39

3032

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

11395

Females

3296

F18-39

3296

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

12270

Females

3777

F18-39

3777

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15408

Females

5542

F18-39

5542

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

11141

Females

3373

F18-39

3373

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10583

Females

3207

F18-39

3207

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11241

Females

3615

F18-39

3615

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9874

Females

2933

F18-39

2933

Passing Analysis

Category:
Athletes Passed
2337
Passed By
1560
Net Change
+777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12533
5K → 10K528107+421#12533#12112
10K → 15K281103+178#12112#11934
15K → 20K30975+234#11934#11700
20K → Half3728+9#11700#11691
Half → 25K78442-364#11691#12055
25K → 30K296163+133#12055#11922
30K → 20M15768+89#11922#11833
20M → 21M12179+42#11833#11791
21M → 35K5362-9#11791#11800
35K → 23M65281-216#11800#12016
23M → 24M10646+60#12016#11956
24M → 40K12144+77#11956#11879
40K → 25.2M4429+15#11879#11864
25.2M → Finish14133+108#11864#11756
TOTALS23371560+777
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing