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BOSTON MARATHON 2025

Jennie Kim

Bib: 23984•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 45%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:14
Rank: #21330
Start → 5K
27:14 | 8:46/mi
10K· 6.21 mi
53:22
Rank: #20330 (+1000)
5K → 10K
26:08 | 8:25/mi
15K· 9.32 mi
1:19:48
Rank: #20028 (+302)
10K → 15K
26:26 | 8:30/mi
20K· 12.43 mi
1:47:19
Rank: #20054 (-26)
15K → 20K
27:31 | 8:51/mi
Half· 13.11 mi
1:53:21
Rank: #20094 (-40)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:15:33
Rank: #20214 (-120)
Half → 25K
22:12 | 9:09/mi
30K· 18.64 mi
2:45:46
Rank: #20338 (-124)
25K → 30K
30:13 | 9:44/mi
20M
2:58:53
Rank: #20292 (+46)
30K → 20M
13:07 | 9:39/mi
21M
3:09:20
Rank: #20272 (+20)
20M → 21M
10:27 | 10:27/mi
35K· 21.75 mi
3:16:11
Rank: #20214 (+58)
21M → 35K
6:51 | 9:09/mi
23M
3:28:34
Rank: #20224 (-10)
35K → 23M
12:23 | 9:53/mi
24M
3:37:58
Rank: #20201 (+23)
23M → 24M
9:24 | 9:24/mi
40K· 24.85 mi
3:46:10
Rank: #20172 (+29)
24M → 40K
8:12 | 9:35/mi
25.2M
3:50:00
Rank: #20195 (-23)
40K → 25.2M
3:50 | 11:07/mi
Finish· 26.22 mi
3:59:45
Rank: #20313 (-118)
25.2M → Finish
9:45 | 9:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:21
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:06:24
Pace9:39 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1727:148:4627:14
8:46
-
10K
6.21 mi11:44:2553:228:3526:08
8:25
-0:21
15K
9.32 mi12:10:511:19:488:3426:26
8:30
+0:05
20K
12.43 mi12:38:221:47:198:3827:31
8:51
+0:21
Half
13.11 mi12:44:241:53:218:396:02
8:51
0:00
25K
15.53 mi13:06:362:15:338:4422:12
9:09
+0:18
30K
18.64 mi13:36:492:45:468:5430:13
9:44
+0:35
20M
20.00 mi13:49:562:58:538:5713:07
9:39
-0:05
21M
21.00 mi14:00:233:09:209:0110:27
10:27
+0:48
35K
21.75 mi14:07:143:16:119:016:51
9:09
-1:18
23M
23.00 mi14:19:373:28:349:0412:23
9:53
+0:44
24M
24.00 mi14:29:013:37:589:059:24
9:24
-0:29
40K
24.85 mi14:37:133:46:109:068:12
9:35
+0:11
25.2M
25.20 mi14:41:033:50:009:083:50
11:07
+1:32
Finish
26.22 mi14:50:483:59:459:099:45
9:34
-1:33

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

8:25 /mi

Average Pace

9:09 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:21

47% of race

Time at Steady Pace

1:39:44

42% of race

Time at Slower Pace

26:40

11% of race

Average Pace: 9:09 /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 mi11:18:1727:148:4627:14
8:46
#21330
10K
6.21 mi11:44:2553:228:3526:08
8:25
#20330
15K
9.32 mi12:10:511:19:488:3426:26
8:30
#20028
20K
12.43 mi12:38:221:47:198:3827:31
8:51
#20054
Half
13.11 mi12:44:241:53:218:396:02
8:51
#20094
25K
15.53 mi13:06:362:15:338:4422:12
9:09
#20214
30K
18.64 mi13:36:492:45:468:5430:13
9:44
#20338
20M
20.00 mi13:49:562:58:538:5713:07
9:39
#20292
21M
21.00 mi14:00:233:09:209:0110:27
10:27
#20272
35K
21.75 mi14:07:143:16:119:016:51
9:09
#20214
23M
23.00 mi14:19:373:28:349:0412:23
9:53
#20224
24M
24.00 mi14:29:013:37:589:059:24
9:24
#20201
40K
24.85 mi14:37:133:46:109:068:12
9:35
#20172
25.2M
25.20 mi14:41:033:50:009:083:50
11:07
#20195
Finish
26.22 mi14:50:483:59:459:099:45
9:34
#20313
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi213308258825819360(Top 68%)7104(Top 58%)7104(Top 715%)
10K6.21 mi3.10 mi20330+10007669+5897669+58919248(Top 68%)7031(Top 57%)7031(Top 707%)
15K9.32 mi3.11 mi20028+3027481+1887481+18819360(Top 68%)7104(Top 58%)7104(Top 715%)
20K12.43 mi3.11 mi20054-267504-237504-2320241(Top 71%)7618(Top 62%)7618(Top 766%)
Half13.11 mi0.68 mi20094-407531-277531-2721061(Top 74%)8093(Top 66%)8093(Top 814%)
25K15.53 mi2.42 mi20214-1207614-837614-8320576(Top 72%)7862(Top 64%)7862(Top 791%)
30K18.64 mi3.11 mi20338-1247722-1087722-10820759(Top 73%)8092(Top 66%)8092(Top 814%)
20M20.00 mi1.36 mi20292+467722772219756(Top 70%)7664(Top 63%)7664(Top 771%)
21M21.00 mi1.00 mi20272+207733-117733-1119823(Top 70%)7815(Top 64%)7815(Top 786%)
35K21.75 mi0.75 mi20214+587715+187715+1818941(Top 67%)7438(Top 61%)7438(Top 748%)
23M23.00 mi1.25 mi20224-107744-297744-2920103(Top 71%)8113(Top 66%)8113(Top 816%)
24M24.00 mi1.00 mi20201+237753-97753-919200(Top 68%)7661(Top 63%)7661(Top 771%)
40K24.85 mi0.85 mi20172+297754-17754-119033(Top 67%)7657(Top 63%)7657(Top 770%)
25.2M25.20 mi0.35 mi20195-237768-147768-1420925(Top 74%)8638(Top 71%)8638(Top 869%)
Finish26.22 mi1.02 mi20313-1187846-787846-7821401(Top 75%)8871(Top 73%)8871(Top 892%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21stories
+97ft-345ft

Overall

19360

Females

7104

F55-59

7104

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

19248

Females

7031

F55-59

7031

10K→15K

6.2 - 9.3 mi

Top 68%
×3stories
+67ft-78ft

Overall

19360

Females

7104

F55-59

7104

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20241

Females

7618

F55-59

7618

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

21061

Females

8093

F55-59

8093

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

20576

Females

7862

F55-59

7862

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

20759

Females

8092

F55-59

8092

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19756

Females

7664

F55-59

7664

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

19823

Females

7815

F55-59

7815

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

18941

Females

7438

F55-59

7438

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20103

Females

8113

F55-59

8113

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19200

Females

7661

F55-59

7661

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19033

Females

7657

F55-59

7657

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

20925

Females

8638

F55-59

8638

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2stories
+22ft-21ft

Overall

21401

Females

8871

F55-59

8871

Passing Analysis

Category:
Athletes Passed
2486
Passed By
1469
Net Change
+1017
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21330
5K → 10K105252+1000#21330#20330
10K → 15K35957+302#20330#20028
15K → 20K183209-26#20028#20054
20K → Half2161-40#20054#20094
Half → 25K118238-120#20094#20214
25K → 30K188312-124#20214#20338
30K → 20M11872+46#20338#20292
20M → 21M10181+20#20292#20272
21M → 35K7820+58#20272#20214
35K → 23M8494-10#20214#20224
23M → 24M6239+23#20224#20201
24M → 40K7647+29#20201#20172
40K → 25.2M1841-23#20172#20195
25.2M → Finish28146-118#20195#20313
TOTALS24861469+1017
📊

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