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BOSTON MARATHON 2025

Jennifer Bell

Bib: 28668•F

WA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:32
Rank: #23178
Start → 5K
28:32 | 9:11/mi
10K· 6.21 mi
55:15
Rank: #21916 (+1262)
5K → 10K
26:43 | 8:36/mi
15K· 9.32 mi
1:22:00
Rank: #21252 (+664)
10K → 15K
26:45 | 8:37/mi
20K· 12.43 mi
1:49:59
Rank: #21182 (+70)
15K → 20K
27:59 | 9:00/mi
Half· 13.11 mi
1:56:02
Rank: #21182
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:18:56
Rank: #21312 (-130)
Half → 25K
22:54 | 9:27/mi
30K· 18.64 mi
2:49:11
Rank: #21222 (+90)
25K → 30K
30:15 | 9:44/mi
20M
3:02:10
Rank: #21065 (+157)
30K → 20M
12:59 | 9:33/mi
21M
3:12:32
Rank: #20969 (+96)
20M → 21M
10:22 | 10:22/mi
35K· 21.75 mi
3:19:41
Rank: #20954 (+15)
21M → 35K
7:09 | 9:33/mi
23M
3:32:32
Rank: #20991 (-37)
35K → 23M
12:51 | 10:16/mi
24M
3:42:40
Rank: #21031 (-40)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:51:33
Rank: #21071 (-40)
24M → 40K
8:53 | 10:23/mi
25.2M
3:55:13
Rank: #21040 (+31)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
4:04:49
Rank: #21026 (+14)
25.2M → Finish
9:36 | 9:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:02
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time2:08:47
Pace9:49 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5328:329:1128:32
9:11
-
10K
6.21 mi12:12:3655:158:5326:43
8:36
-0:35
15K
9.32 mi12:39:211:22:008:4826:45
8:37
+0:01
20K
12.43 mi13:07:201:49:598:5127:59
9:00
+0:23
Half
13.11 mi13:13:231:56:028:516:03
8:52
-0:08
25K
15.53 mi13:36:172:18:568:5722:54
9:27
+0:35
30K
18.64 mi14:06:322:49:119:0530:15
9:44
+0:17
20M
20.00 mi14:19:313:02:109:0612:59
9:33
-0:11
21M
21.00 mi14:29:533:12:329:1010:22
10:22
+0:49
35K
21.75 mi14:37:023:19:419:117:09
9:33
-0:49
23M
23.00 mi14:49:533:32:329:1412:51
10:16
+0:43
24M
24.00 mi15:00:013:42:409:1710:08
10:08
-0:08
40K
24.85 mi15:08:543:51:339:198:53
10:23
+0:15
25.2M
25.20 mi15:12:343:55:139:203:40
10:38
+0:15
Finish
26.22 mi15:22:104:04:499:219:36
9:25
-1:13

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

8:36 /mi

Average Pace

9:21 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:02

47% of race

Time at Steady Pace

1:22:53

34% of race

Time at Slower Pace

45:54

19% of race

Average Pace: 9:20 /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 mi11:45:5328:329:1128:32
9:11
#23178
10K
6.21 mi12:12:3655:158:5326:43
8:36
#21916
15K
9.32 mi12:39:211:22:008:4826:45
8:37
#21252
20K
12.43 mi13:07:201:49:598:5127:59
9:00
#21182
Half
13.11 mi13:13:231:56:028:516:03
8:52
#21182
25K
15.53 mi13:36:172:18:568:5722:54
9:27
#21312
30K
18.64 mi14:06:322:49:119:0530:15
9:44
#21222
20M
20.00 mi14:19:313:02:109:0612:59
9:33
#21065
21M
21.00 mi14:29:533:12:329:1010:22
10:22
#20969
35K
21.75 mi14:37:023:19:419:117:09
9:33
#20954
23M
23.00 mi14:49:533:32:329:1412:51
10:16
#20991
24M
24.00 mi15:00:013:42:409:1710:08
10:08
#21031
40K
24.85 mi15:08:543:51:339:198:53
10:23
#21071
25.2M
25.20 mi15:12:343:55:139:203:40
10:38
#21040
Finish
26.22 mi15:22:104:04:499:219:36
9:25
#21026
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi231789261926119995(Top 70%)7440(Top 61%)7440(Top 410%)
10K6.21 mi3.10 mi21916+12628559+7028559+70220361(Top 72%)7673(Top 63%)7673(Top 423%)
15K9.32 mi3.11 mi21252+6648177+3828177+38219995(Top 70%)7440(Top 61%)7440(Top 410%)
20K12.43 mi3.11 mi21182+708132+458132+4521025(Top 74%)8075(Top 66%)8075(Top 445%)
Half13.11 mi0.68 mi211828129+38129+321277(Top 75%)8191(Top 67%)8191(Top 452%)
25K15.53 mi2.42 mi21312-1308219-908219-9021688(Top 76%)8474(Top 69%)8474(Top 467%)
30K18.64 mi3.11 mi21222+908202+178202+1720803(Top 73%)8121(Top 66%)8121(Top 448%)
20M20.00 mi1.36 mi21065+1578141+618141+6119439(Top 68%)7494(Top 61%)7494(Top 413%)
21M21.00 mi1.00 mi20969+968104+378104+3719615(Top 69%)7692(Top 63%)7692(Top 424%)
35K21.75 mi0.75 mi20954+158107-38107-320545(Top 72%)8263(Top 68%)8263(Top 456%)
23M23.00 mi1.25 mi20991-378159-528159-5221324(Top 75%)8714(Top 71%)8714(Top 481%)
24M24.00 mi1.00 mi21031-408205-468205-4621752(Top 77%)9001(Top 74%)9001(Top 496%)
40K24.85 mi0.85 mi21071-408240-358240-3521627(Top 76%)9001(Top 74%)9001(Top 496%)
25.2M25.20 mi0.35 mi21040+318235+58235+519544(Top 69%)7931(Top 65%)7931(Top 437%)
Finish26.22 mi1.02 mi21026+148238-38238-320907(Top 74%)8610(Top 70%)8610(Top 475%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19995

Females

7440

F45-49

7440

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20361

Females

7673

F45-49

7673

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19995

Females

7440

F45-49

7440

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

21025

Females

8075

F45-49

8075

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21277

Females

8191

F45-49

8191

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21688

Females

8474

F45-49

8474

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20803

Females

8121

F45-49

8121

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

19439

Females

7494

F45-49

7494

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19615

Females

7692

F45-49

7692

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20545

Females

8263

F45-49

8263

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21324

Females

8714

F45-49

8714

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21752

Females

9001

F45-49

9001

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21627

Females

9001

F45-49

9001

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19544

Females

7931

F45-49

7931

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

20907

Females

8610

F45-49

8610

Passing Analysis

Category:
Athletes Passed
3186
Passed By
1034
Net Change
+2152
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23178
5K → 10K12708+1262#23178#21916
10K → 15K69228+664#21916#21252
15K → 20K227157+70#21252#21182
20K → Half31310#21182#21182
Half → 25K106236-130#21182#21312
25K → 30K234144+90#21312#21222
30K → 20M18225+157#21222#21065
20M → 21M13438+96#21065#20969
21M → 35K6651+15#20969#20954
35K → 23M72109-37#20954#20991
23M → 24M4686-40#20991#21031
24M → 40K3070-40#21031#21071
40K → 25.2M4514+31#21071#21040
25.2M → Finish5137+14#21040#21026
TOTALS31861034+2152
📊

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