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BOSTON MARATHON 2025

Jennifer Balentine

Bib: 23357•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 45%
Division (F50-54)
#0 / 1303
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:55
Rank: #18983
Start → 5K
25:55 | 8:21/mi
10K· 6.21 mi
52:09
Rank: #19200 (-217)
5K → 10K
26:14 | 8:27/mi
15K· 9.32 mi
1:18:19
Rank: #19040 (+160)
10K → 15K
26:10 | 8:25/mi
20K· 12.43 mi
1:45:17
Rank: #19093 (-53)
15K → 20K
26:58 | 8:41/mi
Half· 13.11 mi
1:51:04
Rank: #19081 (+12)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:12:20
Rank: #19027 (+54)
Half → 25K
21:16 | 8:46/mi
30K· 18.64 mi
2:40:47
Rank: #18896 (+131)
25K → 30K
28:27 | 9:09/mi
20M
2:53:13
Rank: #18799 (+97)
30K → 20M
12:26 | 9:09/mi
21M
3:03:03
Rank: #18712 (+87)
20M → 21M
9:50 | 9:50/mi
35K· 21.75 mi
3:09:40
Rank: #18666 (+46)
21M → 35K
6:37 | 8:51/mi
23M
3:20:56
Rank: #18499 (+167)
35K → 23M
11:16 | 9:00/mi
24M
3:29:51
Rank: #18404 (+95)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:37:28
Rank: #18316 (+88)
24M → 40K
7:37 | 8:54/mi
25.2M
3:40:48
Rank: #18270 (+46)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:49:16
Rank: #18150 (+120)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:04
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:58:12
Pace9:01 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4325:558:2125:55
8:21
-
10K
6.21 mi11:48:5752:098:2426:14
8:27
+0:06
15K
9.32 mi12:15:071:18:198:2426:10
8:25
-0:02
20K
12.43 mi12:42:051:45:178:2826:58
8:41
+0:16
Half
13.11 mi12:47:521:51:048:285:47
8:29
-0:12
25K
15.53 mi13:09:082:12:208:3121:16
8:46
+0:17
30K
18.64 mi13:37:352:40:478:3828:27
9:09
+0:23
20M
20.00 mi13:50:012:53:138:4012:26
9:09
0:00
21M
21.00 mi13:59:513:03:038:439:50
9:50
+0:41
35K
21.75 mi14:06:283:09:408:436:37
8:51
-0:59
23M
23.00 mi14:17:443:20:568:4411:16
9:00
+0:09
24M
24.00 mi14:26:393:29:518:458:55
8:55
-0:05
40K
24.85 mi14:34:163:37:288:457:37
8:54
-0:01
25.2M
25.20 mi14:37:363:40:488:463:20
9:40
+0:46
Finish
26.22 mi14:46:043:49:168:458:28
8:19
-1:21

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

8:19 /mi

Average Pace

8:45 /mi

Slowest Pace

9:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:13

76% of race

Time at Steady Pace

44:13

19% of race

Time at Slower Pace

9:50

4% of race

Average Pace: 8:45 /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 mi11:22:4325:558:2125:55
8:21
#18983
10K
6.21 mi11:48:5752:098:2426:14
8:27
#19200
15K
9.32 mi12:15:071:18:198:2426:10
8:25
#19040
20K
12.43 mi12:42:051:45:178:2826:58
8:41
#19093
Half
13.11 mi12:47:521:51:048:285:47
8:29
#19081
25K
15.53 mi13:09:082:12:208:3121:16
8:46
#19027
30K
18.64 mi13:37:352:40:478:3828:27
9:09
#18896
20M
20.00 mi13:50:012:53:138:4012:26
9:09
#18799
21M
21.00 mi13:59:513:03:038:439:50
9:50
#18712
35K
21.75 mi14:06:283:09:408:436:37
8:51
#18666
23M
23.00 mi14:17:443:20:568:4411:16
9:00
#18499
24M
24.00 mi14:26:393:29:518:458:55
8:55
#18404
40K
24.85 mi14:34:163:37:288:457:37
8:54
#18316
25.2M
25.20 mi14:37:363:40:488:463:20
9:40
#18270
Finish
26.22 mi14:46:043:49:168:458:28
8:19
#18150
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi189836899689918847(Top 66%)6807(Top 56%)6807(Top 522%)
10K6.21 mi3.10 mi19200-2177008-1097008-10919481(Top 69%)7160(Top 59%)7160(Top 550%)
15K9.32 mi3.11 mi19040+1606936+726936+7218847(Top 66%)6807(Top 56%)6807(Top 522%)
20K12.43 mi3.11 mi19093-536956-206956-2019324(Top 68%)7092(Top 58%)7092(Top 544%)
Half13.11 mi0.68 mi19081+126951+56951+519089(Top 67%)6948(Top 57%)6948(Top 533%)
25K15.53 mi2.42 mi19027+546932+196932+1918795(Top 66%)6866(Top 56%)6866(Top 527%)
30K18.64 mi3.11 mi18896+1316887+456887+4518456(Top 65%)6814(Top 56%)6814(Top 523%)
20M20.00 mi1.36 mi18799+976857+306857+3017550(Top 62%)6447(Top 53%)6447(Top 495%)
21M21.00 mi1.00 mi18712+876844+136844+1317638(Top 62%)6609(Top 54%)6609(Top 507%)
35K21.75 mi0.75 mi18666+466831+136831+1317516(Top 62%)6642(Top 54%)6642(Top 510%)
23M23.00 mi1.25 mi18499+1676765+666765+6616275(Top 57%)6049(Top 49%)6049(Top 464%)
24M24.00 mi1.00 mi18404+956738+276738+2716952(Top 60%)6476(Top 53%)6476(Top 497%)
40K24.85 mi0.85 mi18316+886720+186720+1815834(Top 56%)5963(Top 49%)5963(Top 458%)
25.2M25.20 mi0.35 mi18270+466708+126708+1215521(Top 55%)5845(Top 48%)5845(Top 449%)
Finish26.22 mi1.02 mi18150+1206654+546654+5415009(Top 53%)5494(Top 45%)5494(Top 422%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18847

Females

6807

F50-54

6807

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

19481

Females

7160

F50-54

7160

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18847

Females

6807

F50-54

6807

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19324

Females

7092

F50-54

7092

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

19089

Females

6948

F50-54

6948

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18795

Females

6866

F50-54

6866

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18456

Females

6814

F50-54

6814

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

17550

Females

6447

F50-54

6447

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17638

Females

6609

F50-54

6609

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

17516

Females

6642

F50-54

6642

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16275

Females

6049

F50-54

6049

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16952

Females

6476

F50-54

6476

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15834

Females

5963

F50-54

5963

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15521

Females

5845

F50-54

5845

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15009

Females

5494

F50-54

5494

Passing Analysis

Category:
Athletes Passed
2145
Passed By
1312
Net Change
+833
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18983
5K → 10K160377-217#18983#19200
10K → 15K281121+160#19200#19040
15K → 20K186239-53#19040#19093
20K → Half4230+12#19093#19081
Half → 25K190136+54#19081#19027
25K → 30K291160+131#19027#18896
30K → 20M15255+97#18896#18799
20M → 21M14962+87#18799#18712
21M → 35K7731+46#18712#18666
35K → 23M18619+167#18666#18499
23M → 24M12631+95#18499#18404
24M → 40K11426+88#18404#18316
40K → 25.2M5711+46#18316#18270
25.2M → Finish13414+120#18270#18150
TOTALS21451312+833
📊

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