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BOSTON MARATHON 2025

Esther Jeong

Bib: 13127•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Female)
#0 / 12228
Top 7%
Division (F18-39)
#0 / 5469
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:24/mi
23:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:18/mi
45:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:16/mi
1:08:17
↑ 67↓ 78
20K· 12.43 mi
7:16/mi
1:30:53
↑ 106↓ 860.1%
Half· 13.11 mi
7:11/mi
1:35:47
↑ 19↓ 370.5%
25K· 15.53 mi
7:11/mi
1:53:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:16/mi
2:15:46
↑ 181↓ 1480.2%
20M
7:05/mi
2:25:24
↑ 64↓ 500.2%
21M
7:29/mi
2:32:53
↑ 106↓ 241.6%
35K· 21.75 mi
6:42/mi
2:37:54
↑ 17↓ 861.7%
23M
6:56/mi
2:46:35
↑ 23↓ 630.6%
24M
6:45/mi
2:53:20
↓ 821.3%
40K· 24.85 mi
6:42/mi
2:59:04
↓ 200.3%
25.2M
7:27/mi
3:01:38
↑ 13↓ 160.2%
Finish· 26.22 mi
6:25/mi
3:08:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:35:47
Pace7:18 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:32:23
Pace7:03 /mi
📊Negative Split: 3.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2223:007:2423:00
7:24
-
10K
6.21 mi11:18:0445:427:2122:42
7:18
-0:06
15K
9.32 mi11:40:391:08:177:2022:35
7:16
-0:02
20K
12.43 mi12:03:151:30:537:1922:36
7:16
0:00
Half
13.11 mi12:08:091:35:477:184:54
7:11
-0:05
25K
15.53 mi12:25:341:53:127:1717:25
7:11
0:00
30K
18.64 mi12:48:082:15:467:1722:34
7:16
+0:05
20M
20.00 mi12:57:462:25:247:169:38
7:05
-0:11
21M
21.00 mi13:05:152:32:537:177:29
7:29
+0:24
35K
21.75 mi13:10:162:37:547:165:01
6:42
-0:47
23M
23.00 mi13:18:572:46:357:158:41
6:56
+0:14
24M
24.00 mi13:25:422:53:207:136:45
6:45
-0:11
40K
24.85 mi13:31:262:59:047:125:44
6:42
-0:03
25.2M
25.20 mi13:34:003:01:387:122:34
7:27
+0:45
Finish
26.22 mi13:40:323:08:107:116:32
6:25
-1:02

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

6:25 /mi

Average Pace

7:11 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

32:43

17% of race

Time at Steady Pace

2:35:27

83% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:11 /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 mi10:55:2223:007:2423:00
7:24
#11352
10K
6.21 mi11:18:0445:427:2122:42
7:18
#10813
15K
9.32 mi11:40:391:08:177:2022:35
7:16
#10445
20K
12.43 mi12:03:151:30:537:1922:36
7:16
#9985
Half
13.11 mi12:08:091:35:477:184:54
7:11
#9933
25K
15.53 mi12:25:341:53:127:1717:25
7:11
#9460
30K
18.64 mi12:48:082:15:467:1722:34
7:16
#8689
20M
20.00 mi12:57:462:25:247:169:38
7:05
#8289
21M
21.00 mi13:05:152:32:537:177:29
7:29
#7962
35K
21.75 mi13:10:162:37:547:165:01
6:42
#7757
23M
23.00 mi13:18:572:46:357:158:41
6:56
#7401
24M
24.00 mi13:25:422:53:207:136:45
6:45
#7150
40K
24.85 mi13:31:262:59:047:125:44
6:42
#6915
25.2M
25.20 mi13:34:003:01:387:122:34
7:27
#6810
Finish
26.22 mi13:40:323:08:107:116:32
6:25
#6534
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi11352245424549726(Top 34%)1758(Top 14%)1758(Top 32%)
10K6.21 mi3.10 mi10813+5392209+2452209+24510401(Top 37%)2008(Top 16%)2008(Top 37%)
15K9.32 mi3.11 mi10445+3682048+1612048+1619726(Top 34%)1758(Top 14%)1758(Top 32%)
20K12.43 mi3.11 mi9985+4601859+1891859+1898838(Top 31%)1447(Top 12%)1447(Top 26%)
Half13.11 mi0.68 mi9933+521832+271832+278958(Top 32%)1459(Top 12%)1459(Top 27%)
25K15.53 mi2.42 mi9460+4731658+1741658+1747494(Top 26%)1029(Top 8%)1029(Top 19%)
30K18.64 mi3.11 mi8689+7711367+2911367+2916257(Top 22%)749(Top 6%)749(Top 14%)
20M20.00 mi1.36 mi8289+4001246+1211246+1214644(Top 16%)426(Top 3%)426(Top 8%)
21M21.00 mi1.00 mi7962+3271162+841162+844574(Top 16%)510(Top 4%)510(Top 9%)
35K21.75 mi0.75 mi7757+2051106+561106+563617(Top 13%)341(Top 3%)341(Top 6%)
23M23.00 mi1.25 mi7401+3561024+821024+823434(Top 12%)307(Top 3%)307(Top 6%)
24M24.00 mi1.00 mi7150+251968+56968+563276(Top 12%)322(Top 3%)322(Top 6%)
40K24.85 mi0.85 mi6915+235914+54914+542441(Top 9%)206(Top 2%)206(Top 4%)
25.2M25.20 mi0.35 mi6810+105896+18896+183246(Top 11%)383(Top 3%)383(Top 7%)
Finish26.22 mi1.02 mi6534+276843+53843+532402(Top 8%)208(Top 2%)208(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9726

Females

1758

F18-39

1758

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10401

Females

2008

F18-39

2008

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9726

Females

1758

F18-39

1758

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8838

Females

1447

F18-39

1447

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8958

Females

1459

F18-39

1459

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7494

Females

1029

F18-39

1029

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

6257

Females

749

F18-39

749

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4644

Females

426

F18-39

426

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4574

Females

510

F18-39

510

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3617

Females

341

F18-39

341

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3434

Females

307

F18-39

307

23M→24M

23.0 - 24.0 mi

Top 12%
×6story building
+12ft-82ft

Overall

3276

Females

322

F18-39

322

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2441

Females

206

F18-39

206

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3246

Females

383

F18-39

383

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2402

Females

208

F18-39

208

Passing Analysis

Category:
Athletes Passed
4966*
Passed By
148
Net Change
+4818
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11352
5K → 10K62889+539#11352#10813
10K → 15K39729+368#10813#10445
15K → 20K47414+460#10445#9985
20K → Half57*5+52#9985#9933
Half → 25K4785+473#9933#9460
25K → 30K7743+771#9460#8689
30K → 20M4000+400#8689#8289
20M → 21M3270+327#8289#7962
21M → 35K2061+205#7962#7757
35K → 23M3560+356#7757#7401
23M → 24M2510+251#7401#7150
24M → 40K2361+235#7150#6915
40K → 25.2M1050+105#6915#6810
25.2M → Finish2771+276#6810#6534
TOTALS4966*148+4818

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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