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BOSTON MARATHON 2025

Jessica Anderson

Bib: 20210•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 40%
Division (F45-49)
#0 / 1813
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:25
Rank: #19899
Start → 5K
26:25 | 8:30/mi
10K· 6.21 mi
51:35
Rank: #18622 (+1277)
5K → 10K
25:10 | 8:06/mi
15K· 9.32 mi
1:16:55
Rank: #18124 (+498)
10K → 15K
25:20 | 8:09/mi
20K· 12.43 mi
1:42:08
Rank: #17471 (+653)
15K → 20K
25:13 | 8:07/mi
Half· 13.11 mi
1:47:34
Rank: #17366 (+105)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:07:29
Rank: #17004 (+362)
Half → 25K
19:55 | 8:13/mi
30K· 18.64 mi
2:36:28
Rank: #17429 (-425)
25K → 30K
28:59 | 9:20/mi
20M
2:49:13
Rank: #17531 (-102)
30K → 20M
12:45 | 9:23/mi
21M
2:59:14
Rank: #17586 (-55)
20M → 21M
10:01 | 10:01/mi
35K· 21.75 mi
3:05:34
Rank: #17495 (+91)
21M → 35K
6:20 | 8:28/mi
23M
3:17:01
Rank: #17447 (+48)
35K → 23M
11:27 | 9:09/mi
24M
3:25:32
Rank: #17314 (+133)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:33:01
Rank: #17218 (+96)
24M → 40K
7:29 | 8:45/mi
25.2M
3:36:27
Rank: #17214 (+4)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:45:30
Rank: #17271 (-57)
25.2M → Finish
9:03 | 8:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:34
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:57:56
Pace9:00 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:0226:258:3026:25
8:30
-
10K
6.21 mi11:53:1251:358:1825:10
8:06
-0:24
15K
9.32 mi12:18:321:16:558:1525:20
8:09
+0:03
20K
12.43 mi12:43:451:42:088:1325:13
8:07
-0:02
Half
13.11 mi12:49:111:47:348:125:26
7:58
-0:09
25K
15.53 mi13:09:062:07:298:1219:55
8:13
+0:15
30K
18.64 mi13:38:052:36:288:2428:59
9:20
+1:07
20M
20.00 mi13:50:502:49:138:2812:45
9:23
+0:03
21M
21.00 mi14:00:512:59:148:3210:01
10:01
+0:38
35K
21.75 mi14:07:113:05:348:326:20
8:28
-1:33
23M
23.00 mi14:18:383:17:018:3411:27
9:09
+0:41
24M
24.00 mi14:27:093:25:328:348:31
8:31
-0:38
40K
24.85 mi14:34:383:33:018:347:29
8:45
+0:14
25.2M
25.20 mi14:38:043:36:278:353:26
9:57
+1:12
Finish
26.22 mi14:47:073:45:308:369:03
8:53
-1:04

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

7:58 /mi

Average Pace

8:36 /mi

Slowest Pace

10:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:09

36% of race

Time at Steady Pace

1:08:40

30% of race

Time at Slower Pace

1:15:41

34% of race

Average Pace: 8:36 /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 mi11:28:0226:258:3026:25
8:30
#19899
10K
6.21 mi11:53:1251:358:1825:10
8:06
#18622
15K
9.32 mi12:18:321:16:558:1525:20
8:09
#18124
20K
12.43 mi12:43:451:42:088:1325:13
8:07
#17471
Half
13.11 mi12:49:111:47:348:125:26
7:58
#17366
25K
15.53 mi13:09:062:07:298:1219:55
8:13
#17004
30K
18.64 mi13:38:052:36:288:2428:59
9:20
#17429
20M
20.00 mi13:50:502:49:138:2812:45
9:23
#17531
21M
21.00 mi14:00:512:59:148:3210:01
10:01
#17586
35K
21.75 mi14:07:113:05:348:326:20
8:28
#17495
23M
23.00 mi14:18:383:17:018:3411:27
9:09
#17447
24M
24.00 mi14:27:093:25:328:348:31
8:31
#17314
40K
24.85 mi14:34:383:33:018:347:29
8:45
#17218
25.2M
25.20 mi14:38:043:36:278:353:26
9:57
#17214
Finish
26.22 mi14:47:073:45:308:369:03
8:53
#17271
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi198997442744217117(Top 60%)5803(Top 47%)5803(Top 320%)
10K6.21 mi3.10 mi18622+12776692+7506692+75017219(Top 61%)5836(Top 48%)5836(Top 322%)
15K9.32 mi3.11 mi18124+4986403+2896403+28917117(Top 60%)5803(Top 47%)5803(Top 320%)
20K12.43 mi3.11 mi17471+6536017+3866017+38615775(Top 56%)5084(Top 42%)5084(Top 280%)
Half13.11 mi0.68 mi17366+1055961+565961+5615702(Top 55%)5022(Top 41%)5022(Top 277%)
25K15.53 mi2.42 mi17004+3625766+1955766+19515418(Top 54%)4971(Top 41%)4971(Top 274%)
30K18.64 mi3.11 mi17429-4256074-3086074-30819246(Top 68%)7250(Top 59%)7250(Top 400%)
20M20.00 mi1.36 mi17531-1026162-886162-8818680(Top 66%)7091(Top 58%)7091(Top 391%)
21M21.00 mi1.00 mi17586-556210-486210-4818367(Top 65%)6985(Top 57%)6985(Top 385%)
35K21.75 mi0.75 mi17495+916183+276183+2715309(Top 54%)5420(Top 44%)5420(Top 299%)
23M23.00 mi1.25 mi17447+486197-146197-1417092(Top 60%)6502(Top 53%)6502(Top 359%)
24M24.00 mi1.00 mi17314+1336146+516146+5114662(Top 52%)5198(Top 43%)5198(Top 287%)
40K24.85 mi0.85 mi17218+966116+306116+3014955(Top 53%)5500(Top 45%)5500(Top 303%)
25.2M25.20 mi0.35 mi17214+46121-56121-516863(Top 59%)6517(Top 53%)6517(Top 359%)
Finish26.22 mi1.02 mi17271-576171-506171-5018458(Top 65%)7314(Top 60%)7314(Top 403%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

17117

Females

5803

F45-49

5803

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

17219

Females

5836

F45-49

5836

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

17117

Females

5803

F45-49

5803

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15775

Females

5084

F45-49

5084

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

15702

Females

5022

F45-49

5022

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

15418

Females

4971

F45-49

4971

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19246

Females

7250

F45-49

7250

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18680

Females

7091

F45-49

7091

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18367

Females

6985

F45-49

6985

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

15309

Females

5420

F45-49

5420

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

17092

Females

6502

F45-49

6502

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14662

Females

5198

F45-49

5198

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14955

Females

5500

F45-49

5500

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16863

Females

6517

F45-49

6517

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18458

Females

7314

F45-49

7314

Passing Analysis

Category:
Athletes Passed
3867
Passed By
1239
Net Change
+2628
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19899
5K → 10K130023+1277#19899#18622
10K → 15K52830+498#18622#18124
15K → 20K6618+653#18124#17471
20K → Half1094+105#17471#17366
Half → 25K38220+362#17366#17004
25K → 30K112537-425#17004#17429
30K → 20M82184-102#17429#17531
20M → 21M89144-55#17531#17586
21M → 35K11423+91#17586#17495
35K → 23M13486+48#17495#17447
23M → 24M15623+133#17447#17314
24M → 40K11519+96#17314#17218
40K → 25.2M3935+4#17218#17214
25.2M → Finish46103-57#17214#17271
TOTALS38671239+2628
📊

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