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BOSTON MARATHON 2025

Natalie Jeong

Bib: 24276•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 44%
Division (F55-59)
#0 / 994
Top 23%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:59
Rank: #19100
Start → 5K
8:22/mi
25:59 split
10K· 6.21 mi
52:03
Rank: #19106 (-6)
5K → 10K
8:23/mi
26:04 split
15K· 9.32 mi
1:18:15
Rank: #18997 (+109)
10K → 15K
8:26/mi
26:12 split
20K· 12.43 mi
1:44:21
Rank: #18642 (+355)
15K → 20K
8:24/mi
26:06 split
Half· 13.11 mi
1:50:01
Rank: #18595 (+47)
20K → Half
8:18/mi
5:40 split
25K· 15.53 mi
2:10:48
Rank: #18412 (+183)
Half → 25K
8:34/mi
20:47 split
30K· 18.64 mi
2:38:47
Rank: #18254 (+158)
25K → 30K
9:00/mi
27:59 split
20M
2:51:12
Rank: #18156 (+98)
30K → 20M
9:08/mi
12:25 split
21M
3:00:40
Rank: #18035 (+121)
20M → 21M
9:28/mi
9:28 split
35K· 21.75 mi
3:07:19
Rank: #18008 (+27)
21M → 35K
8:53/mi
6:39 split
23M
3:18:48
Rank: #17944 (+64)
35K → 23M
9:10/mi
11:29 split
24M
3:28:06
Rank: #17970 (-26)
23M → 24M
9:18/mi
9:18 split
40K· 24.85 mi
3:35:53
Rank: #17928 (+42)
24M → 40K
9:06/mi
7:47 split
25.2M
3:39:22
Rank: #17925 (+3)
40K → 25.2M
10:06/mi
3:29 split
Finish· 26.22 mi
3:48:19
Rank: #17919 (+6)
25.2M → Finish
8:47/mi
8:57 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:01
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time1:58:18
Pace9:01 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:4425:598:2225:59
8:22
-
10K
6.21 mi11:51:4852:038:2326:04
8:23
+0:01
15K
9.32 mi12:18:001:18:158:2426:12
8:26
+0:03
20K
12.43 mi12:44:061:44:218:2426:06
8:24
-0:02
Half
13.11 mi12:49:461:50:018:245:40
8:18
-0:06
25K
15.53 mi13:10:332:10:488:2520:47
8:34
+0:16
30K
18.64 mi13:38:322:38:478:3127:59
9:00
+0:26
20M
20.00 mi13:50:572:51:128:3412:25
9:08
+0:08
21M
21.00 mi14:00:253:00:408:369:28
9:28
+0:20
35K
21.75 mi14:07:043:07:198:376:39
8:53
-0:35
23M
23.00 mi14:18:333:18:488:3911:29
9:10
+0:17
24M
24.00 mi14:27:513:28:068:409:18
9:18
+0:08
40K
24.85 mi14:35:383:35:538:417:47
9:06
-0:12
25.2M
25.20 mi14:39:073:39:228:423:29
10:06
+1:00
Finish
26.22 mi14:48:043:48:198:438:57
8:47
-1:19

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

8:43 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:48

57% of race

Time at Steady Pace

51:22

22% of race

Time at Slower Pace

46:09

20% of race

Average Pace: 8:42 /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 mi11:25:4425:598:2225:59
8:22
#19100
10K
6.21 mi11:51:4852:038:2326:04
8:23
#19106
15K
9.32 mi12:18:001:18:158:2426:12
8:26
#18997
20K
12.43 mi12:44:061:44:218:2426:06
8:24
#18642
Half
13.11 mi12:49:461:50:018:245:40
8:18
#18595
25K
15.53 mi13:10:332:10:488:2520:47
8:34
#18412
30K
18.64 mi13:38:322:38:478:3127:59
9:00
#18254
20M
20.00 mi13:50:572:51:128:3412:25
9:08
#18156
21M
21.00 mi14:00:253:00:408:369:28
9:28
#18035
35K
21.75 mi14:07:043:07:198:376:39
8:53
#18008
23M
23.00 mi14:18:333:18:488:3911:29
9:10
#17944
24M
24.00 mi14:27:513:28:068:409:18
9:18
#17970
40K
24.85 mi14:35:383:35:538:417:47
9:06
#17928
25.2M
25.20 mi14:39:073:39:228:423:29
10:06
#17925
Finish
26.22 mi14:48:043:48:198:438:57
8:47
#17919
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi191006961696118922(Top 67%)6854(Top 56%)6854(Top 690%)
10K6.21 mi3.10 mi19106-66961696119127(Top 67%)6958(Top 57%)6958(Top 700%)
15K9.32 mi3.11 mi18997+1096910+516910+5118922(Top 67%)6854(Top 56%)6854(Top 690%)
20K12.43 mi3.11 mi18642+3556700+2106700+21017568(Top 62%)6090(Top 50%)6090(Top 613%)
Half13.11 mi0.68 mi18595+476675+256675+2518003(Top 63%)6320(Top 52%)6320(Top 636%)
25K15.53 mi2.42 mi18412+1836587+886587+8817646(Top 62%)6221(Top 51%)6221(Top 626%)
30K18.64 mi3.11 mi18254+1586534+536534+5317738(Top 62%)6436(Top 53%)6436(Top 647%)
20M20.00 mi1.36 mi18156+986505+296505+2917494(Top 62%)6416(Top 52%)6416(Top 645%)
21M21.00 mi1.00 mi18035+1216454+516454+5115956(Top 56%)5689(Top 47%)5689(Top 572%)
35K21.75 mi0.75 mi18008+276453+16453+117725(Top 62%)6749(Top 55%)6749(Top 679%)
23M23.00 mi1.25 mi17944+646466-136466-1317214(Top 61%)6567(Top 54%)6567(Top 661%)
24M24.00 mi1.00 mi17970-266508-426508-4218829(Top 66%)7454(Top 61%)7454(Top 750%)
40K24.85 mi0.85 mi17928+426508650816906(Top 60%)6537(Top 53%)6537(Top 658%)
25.2M25.20 mi0.35 mi17925+36515-76515-717514(Top 62%)6868(Top 56%)6868(Top 691%)
Finish26.22 mi1.02 mi17919+66524-96524-917979(Top 63%)7073(Top 58%)7073(Top 712%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

18922

Females

6854

F55-59

6854

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

19127

Females

6958

F55-59

6958

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

18922

Females

6854

F55-59

6854

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17568

Females

6090

F55-59

6090

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

18003

Females

6320

F55-59

6320

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17646

Females

6221

F55-59

6221

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17738

Females

6436

F55-59

6436

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17494

Females

6416

F55-59

6416

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15956

Females

5689

F55-59

5689

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17725

Females

6749

F55-59

6749

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17214

Females

6567

F55-59

6567

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18829

Females

7454

F55-59

7454

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16906

Females

6537

F55-59

6537

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17514

Females

6868

F55-59

6868

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

17979

Females

7073

F55-59

7073

Passing Analysis

Category:
Athletes Passed
2305
Passed By
1124
Net Change
+1181
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19100
5K → 10K254260-6#19100#19106
10K → 15K248139+109#19106#18997
15K → 20K39237+355#18997#18642
20K → Half6316+47#18642#18595
Half → 25K25673+183#18595#18412
25K → 30K308150+158#18412#18254
30K → 20M16971+98#18254#18156
20M → 21M15837+121#18156#18035
21M → 35K6235+27#18035#18008
35K → 23M13773+64#18008#17944
23M → 24M7197-26#17944#17970
24M → 40K8240+42#17970#17928
40K → 25.2M2724+3#17928#17925
25.2M → Finish7872+6#17925#17919
TOTALS23051124+1181
📊

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