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BOSTON MARATHON 2025

Jessica Marks

Bib: 26689•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 47%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:29/mi
29:29
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
55:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:24/mi
1:21:20
↑ 67↓ 78
20K· 12.43 mi
8:25/mi
1:47:30
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:53:10
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:15:03
↑ 66↓ 880.2%
30K· 18.64 mi
9:01/mi
2:43:03
↑ 181↓ 1480.2%
20M
9:02/mi
2:55:19
↑ 64↓ 500.2%
21M
9:57/mi
3:05:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:36/mi
3:11:42
↑ 17↓ 861.7%
23M
8:56/mi
3:22:53
↑ 23↓ 630.6%
24M
8:37/mi
3:31:30
↓ 821.3%
40K· 24.85 mi
8:54/mi
3:39:07
↓ 200.3%
25.2M
9:31/mi
3:42:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:50:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:10
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time1:57:49
Pace8:59 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4529:299:2929:29
9:29
-
10K
6.21 mi12:16:3155:158:5325:46
8:18
-1:11
15K
9.32 mi12:42:361:21:208:4426:05
8:24
+0:06
20K
12.43 mi13:08:461:47:308:3926:10
8:25
+0:01
Half
13.11 mi13:14:261:53:108:385:40
8:18
-0:07
25K
15.53 mi13:36:192:15:038:4221:53
9:02
+0:44
30K
18.64 mi14:04:192:43:038:4528:00
9:01
-0:01
20M
20.00 mi14:16:352:55:198:4612:16
9:02
+0:01
21M
21.00 mi14:26:323:05:168:499:57
9:57
+0:55
35K
21.75 mi14:32:583:11:428:496:26
8:36
-1:21
23M
23.00 mi14:44:093:22:538:4911:11
8:56
+0:20
24M
24.00 mi14:52:463:31:308:498:37
8:37
-0:19
40K
24.85 mi15:00:233:39:078:497:37
8:54
+0:17
25.2M
25.20 mi15:03:403:42:248:503:17
9:31
+0:37
Finish
26.22 mi15:12:153:50:598:498:35
8:25
-1:06

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

8:18 /mi

Average Pace

8:49 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:16

82% of race

Time at Steady Pace

32:46

14% of race

Time at Slower Pace

9:57

4% of race

Average Pace: 8:49 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:50:4529:299:2929:29
9:29
#24211
10K
6.21 mi12:16:3155:158:5325:46
8:18
#21912
15K
9.32 mi12:42:361:21:208:4426:05
8:24
#20887
20K
12.43 mi13:08:461:47:308:3926:10
8:25
#20133
Half
13.11 mi13:14:261:53:108:385:40
8:18
#20031
25K
15.53 mi13:36:192:15:038:4221:53
9:02
#20029
30K
18.64 mi14:04:192:43:038:4528:00
9:01
#19575
20M
20.00 mi14:16:352:55:198:4612:16
9:02
#19381
21M
21.00 mi14:26:323:05:168:499:57
9:57
#19299
35K
21.75 mi14:32:583:11:428:496:26
8:36
#19186
23M
23.00 mi14:44:093:22:538:4911:11
8:56
#18989
24M
24.00 mi14:52:463:31:308:498:37
8:37
#18844
40K
24.85 mi15:00:233:39:078:497:37
8:54
#18717
25.2M
25.20 mi15:03:403:42:248:503:17
9:31
#18639
Finish
26.22 mi15:12:153:50:598:498:35
8:25
#18541
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi242119803980318692(Top 66%)6719(Top 55%)6719(Top 391%)
10K6.21 mi3.10 mi21912+22998555+12488555+124818520(Top 65%)6613(Top 54%)6613(Top 385%)
15K9.32 mi3.11 mi20887+10257979+5767979+57618692(Top 66%)6719(Top 55%)6719(Top 391%)
20K12.43 mi3.11 mi20133+7547545+4347545+43417701(Top 62%)6168(Top 50%)6168(Top 359%)
Half13.11 mi0.68 mi20031+1027492+537492+5318017(Top 63%)6334(Top 52%)6334(Top 369%)
25K15.53 mi2.42 mi20029+27499-77499-720024(Top 70%)7545(Top 62%)7545(Top 439%)
30K18.64 mi3.11 mi19575+4547281+2187281+21817767(Top 63%)6455(Top 53%)6455(Top 376%)
20M20.00 mi1.36 mi19381+1947199+827199+8216960(Top 60%)6119(Top 50%)6119(Top 356%)
21M21.00 mi1.00 mi19299+827175+247175+2418125(Top 64%)6862(Top 56%)6862(Top 399%)
35K21.75 mi0.75 mi19186+1137121+547121+5416116(Top 57%)5859(Top 48%)5859(Top 341%)
23M23.00 mi1.25 mi18989+1977042+797042+7915897(Top 56%)5835(Top 48%)5835(Top 340%)
24M24.00 mi1.00 mi18844+1456982+606982+6015305(Top 54%)5555(Top 45%)5555(Top 323%)
40K24.85 mi0.85 mi18717+1276945+376945+3715838(Top 56%)5967(Top 49%)5967(Top 347%)
25.2M25.20 mi0.35 mi18639+786913+326913+3214795(Top 52%)5465(Top 45%)5465(Top 318%)
Finish26.22 mi1.02 mi18541+986875+386875+3815774(Top 56%)5906(Top 48%)5906(Top 344%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18692

Females

6719

F40-44

6719

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18520

Females

6613

F40-44

6613

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18692

Females

6719

F40-44

6719

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17701

Females

6168

F40-44

6168

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

18017

Females

6334

F40-44

6334

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

20024

Females

7545

F40-44

7545

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17767

Females

6455

F40-44

6455

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16960

Females

6119

F40-44

6119

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18125

Females

6862

F40-44

6862

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16116

Females

5859

F40-44

5859

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15897

Females

5835

F40-44

5835

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15305

Females

5555

F40-44

5555

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15838

Females

5967

F40-44

5967

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14795

Females

5465

F40-44

5465

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15774

Females

5906

F40-44

5906

Passing Analysis

Category:
Athletes Passed
6016
Passed By
346
Net Change
+5670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24211
5K → 10K22990+2299#24211#21912
10K → 15K10294+1025#21912#20887
15K → 20K7595+754#20887#20133
20K → Half1042+102#20133#20031
Half → 25K155153+2#20031#20029
25K → 30K49440+454#20029#19575
30K → 20M21420+194#19575#19381
20M → 21M13755+82#19381#19299
21M → 35K1185+113#19299#19186
35K → 23M20912+197#19186#18989
23M → 24M15712+145#18989#18844
24M → 40K13912+127#18844#18717
40K → 25.2M846+78#18717#18639
25.2M → Finish11820+98#18639#18541
TOTALS6016346+5670
📊

Passing Visuals

Category:
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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