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BOSTON MARATHON 2025

Jennifer Klimek

Bib: 23309•F

WI

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:29
Rank: #21742
Start → 5K
27:29 | 8:51/mi
10K· 6.21 mi
54:33
Rank: #21343 (+399)
5K → 10K
27:04 | 8:43/mi
15K· 9.32 mi
1:21:50
Rank: #21153 (+190)
10K → 15K
27:17 | 8:47/mi
20K· 12.43 mi
1:49:01
Rank: #20783 (+370)
15K → 20K
27:11 | 8:45/mi
Half· 13.11 mi
1:54:52
Rank: #20736 (+47)
20K → Half
5:51 | 8:34/mi
25K· 15.53 mi
2:16:28
Rank: #20549 (+187)
Half → 25K
21:36 | 8:55/mi
30K· 18.64 mi
2:45:58
Rank: #20385 (+164)
25K → 30K
29:30 | 9:30/mi
20M
2:59:01
Rank: #20331 (+54)
30K → 20M
13:03 | 9:36/mi
21M
3:09:43
Rank: #20360 (-29)
20M → 21M
10:42 | 10:42/mi
35K· 21.75 mi
3:16:33
Rank: #20292 (+68)
21M → 35K
6:50 | 9:08/mi
23M
3:28:56
Rank: #20299 (-7)
35K → 23M
12:23 | 9:53/mi
24M
3:38:33
Rank: #20320 (-21)
23M → 24M
9:37 | 9:37/mi
40K· 24.85 mi
3:46:55
Rank: #20317 (+3)
24M → 40K
8:22 | 9:47/mi
25.2M
3:50:31
Rank: #20307 (+10)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:59:28
Rank: #20249 (+58)
25.2M → Finish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:52
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:04:36
Pace9:30 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:1627:298:5127:29
8:51
-
10K
6.21 mi11:51:2054:338:4727:04
8:43
-0:08
15K
9.32 mi12:18:371:21:508:4727:17
8:47
+0:04
20K
12.43 mi12:45:481:49:018:4627:11
8:45
-0:02
Half
13.11 mi12:51:391:54:528:465:51
8:34
-0:11
25K
15.53 mi13:13:152:16:288:4721:36
8:55
+0:21
30K
18.64 mi13:42:452:45:588:5429:30
9:30
+0:35
20M
20.00 mi13:55:482:59:018:5713:03
9:36
+0:06
21M
21.00 mi14:06:303:09:439:0210:42
10:42
+1:06
35K
21.75 mi14:13:203:16:339:026:50
9:08
-1:34
23M
23.00 mi14:25:433:28:569:0512:23
9:53
+0:45
24M
24.00 mi14:35:203:38:339:069:37
9:37
-0:16
40K
24.85 mi14:43:423:46:559:088:22
9:47
+0:10
25.2M
25.20 mi14:47:183:50:319:093:36
10:26
+0:39
Finish
26.22 mi14:56:153:59:289:088:57
8:47
-1:39

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

8:34 /mi

Average Pace

9:08 /mi

Slowest Pace

10:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:20

40% of race

Time at Steady Pace

55:55

23% of race

Time at Slower Pace

1:27:13

36% of race

Average Pace: 9:08 /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 mi11:24:1627:298:5127:29
8:51
#21742
10K
6.21 mi11:51:2054:338:4727:04
8:43
#21343
15K
9.32 mi12:18:371:21:508:4727:17
8:47
#21153
20K
12.43 mi12:45:481:49:018:4627:11
8:45
#20783
Half
13.11 mi12:51:391:54:528:465:51
8:34
#20736
25K
15.53 mi13:13:152:16:288:4721:36
8:55
#20549
30K
18.64 mi13:42:452:45:588:5429:30
9:30
#20385
20M
20.00 mi13:55:482:59:018:5713:03
9:36
#20331
21M
21.00 mi14:06:303:09:439:0210:42
10:42
#20360
35K
21.75 mi14:13:203:16:339:026:50
9:08
#20292
23M
23.00 mi14:25:433:28:569:0512:23
9:53
#20299
24M
24.00 mi14:35:203:38:339:069:37
9:37
#20320
40K
24.85 mi14:43:423:46:559:088:22
9:47
#20317
25.2M
25.20 mi14:47:183:50:319:093:36
10:26
#20307
Finish
26.22 mi14:56:153:59:289:088:57
8:47
#20249
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi217428482848220946(Top 74%)7973(Top 65%)7973(Top 612%)
10K6.21 mi3.10 mi21343+3998244+2388244+23820951(Top 74%)7993(Top 65%)7993(Top 613%)
15K9.32 mi3.11 mi21153+1908121+1238121+12320946(Top 74%)7973(Top 65%)7973(Top 612%)
20K12.43 mi3.11 mi20783+3707917+2047917+20419695(Top 69%)7315(Top 60%)7315(Top 561%)
Half13.11 mi0.68 mi20736+477892+257892+2519744(Top 70%)7332(Top 60%)7332(Top 563%)
25K15.53 mi2.42 mi20549+1877798+947798+9419486(Top 69%)7252(Top 59%)7252(Top 557%)
30K18.64 mi3.11 mi20385+1647753+457753+4519932(Top 70%)7626(Top 62%)7626(Top 585%)
20M20.00 mi1.36 mi20331+547740+137740+1319642(Top 69%)7602(Top 62%)7602(Top 583%)
21M21.00 mi1.00 mi20360-297777-377777-3720606(Top 73%)8247(Top 67%)8247(Top 633%)
35K21.75 mi0.75 mi20292+687757+207757+2018919(Top 67%)7416(Top 61%)7416(Top 569%)
23M23.00 mi1.25 mi20299-77787-307787-3020130(Top 71%)8120(Top 66%)8120(Top 623%)
24M24.00 mi1.00 mi20320-217812-257812-2520074(Top 71%)8123(Top 66%)8123(Top 623%)
40K24.85 mi0.85 mi20317+37825-137825-1319781(Top 70%)8033(Top 66%)8033(Top 617%)
25.2M25.20 mi0.35 mi20307+107833-87833-818846(Top 66%)7557(Top 62%)7557(Top 580%)
Finish26.22 mi1.02 mi20249+587808+257808+2517989(Top 63%)7083(Top 58%)7083(Top 544%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

20946

Females

7973

F50-54

7973

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

20951

Females

7993

F50-54

7993

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

20946

Females

7973

F50-54

7973

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19695

Females

7315

F50-54

7315

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

19744

Females

7332

F50-54

7332

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19486

Females

7252

F50-54

7252

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

19932

Females

7626

F50-54

7626

30K→20M

18.6 - 20.0 mi

Top 69%
×5stories
+64ft-50ft

Overall

19642

Females

7602

F50-54

7602

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20606

Females

8247

F50-54

8247

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

18919

Females

7416

F50-54

7416

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20130

Females

8120

F50-54

8120

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20074

Females

8123

F50-54

8123

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19781

Females

8033

F50-54

8033

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18846

Females

7557

F50-54

7557

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17989

Females

7083

F50-54

7083

Passing Analysis

Category:
Athletes Passed
2440
Passed By
947
Net Change
+1493
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21742
5K → 10K514115+399#21742#21343
10K → 15K306116+190#21343#21153
15K → 20K40535+370#21153#20783
20K → Half6114+47#20783#20736
Half → 25K25063+187#20736#20549
25K → 30K294130+164#20549#20385
30K → 20M12369+54#20385#20331
20M → 21M82111-29#20331#20360
21M → 35K8719+68#20360#20292
35K → 23M8895-7#20292#20299
23M → 24M5071-21#20299#20320
24M → 40K5653+3#20320#20317
40K → 25.2M3626+10#20317#20307
25.2M → Finish8830+58#20307#20249
TOTALS2440947+1493
📊

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