Boston Marathon logo
BOSTON MARATHON 2025

Esther Jin

Bib: 23996•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
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
9:22/mi
29:05
↑ 97↓ 3451.5%
10K· 6.21 mi
9:23/mi
58:15
↑ 79↓ 1380.4%
15K· 9.32 mi
10:07/mi
1:29:41
↑ 67↓ 78
20K· 12.43 mi
9:52/mi
2:00:20
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:06:41
↑ 19↓ 370.5%
25K· 15.53 mi
10:45/mi
2:32:44
↑ 66↓ 880.2%
30K· 18.64 mi
11:03/mi
3:07:03
↑ 181↓ 1480.2%
20M
9:44/mi
3:20:17
↑ 64↓ 500.2%
21M
11:41/mi
3:31:58
↑ 106↓ 241.6%
35K· 21.75 mi
9:01/mi
3:38:43
↑ 17↓ 861.7%
23M
10:41/mi
3:52:06
↑ 23↓ 630.6%
24M
9:32/mi
4:01:38
↓ 821.3%
40K· 24.85 mi
9:55/mi
4:10:07
↓ 200.3%
25.2M
12:43/mi
4:14:30
↑ 13↓ 160.2%
Finish· 26.22 mi
9:18/mi
4:23:59
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:41
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:17:18
Pace10:28 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:4329:059:2229:05
9:22
-
10K
6.21 mi11:57:5358:159:2229:10
9:23
+0:01
15K
9.32 mi12:29:191:29:419:3731:26
10:07
+0:44
20K
12.43 mi12:59:582:00:209:4130:39
9:52
-0:15
Half
13.11 mi13:06:192:06:419:406:21
9:18
-0:34
25K
15.53 mi13:32:222:32:449:5026:03
10:45
+1:27
30K
18.64 mi14:06:413:07:0310:0234:19
11:03
+0:18
20M
20.00 mi14:19:553:20:1710:0113:14
9:44
-1:19
21M
21.00 mi14:31:363:31:5810:0611:41
11:41
+1:57
35K
21.75 mi14:38:213:38:4310:036:45
9:01
-2:40
23M
23.00 mi14:51:443:52:0610:0513:23
10:41
+1:40
24M
24.00 mi15:01:164:01:3810:049:32
9:32
-1:09
40K
24.85 mi15:09:454:10:0710:048:29
9:55
+0:23
25.2M
25.20 mi15:14:084:14:3010:064:23
12:43
+2:48
Finish
26.22 mi15:23:374:23:5910:059:29
9:18
-3:25

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

9:01 /mi

Average Pace

10:05 /mi

Slowest Pace

12:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:35

9% of race

Time at Steady Pace

2:31:35

57% of race

Time at Slower Pace

1:29:49

34% of race

Average Pace: 10:04 /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 mi11:28:4329:059:2229:05
9:22
#23788
10K
6.21 mi11:57:5358:159:2229:10
9:23
#23811
15K
9.32 mi12:29:191:29:419:3731:26
10:07
#24370
20K
12.43 mi12:59:582:00:209:4130:39
9:52
#24260
Half
13.11 mi13:06:192:06:419:406:21
9:18
#24200
25K
15.53 mi13:32:222:32:449:5026:03
10:45
#24335
30K
18.64 mi14:06:413:07:0310:0234:19
11:03
#24307
20M
20.00 mi14:19:553:20:1710:0113:14
9:44
#24035
21M
21.00 mi14:31:363:31:5810:0611:41
11:41
#23983
35K
21.75 mi14:38:213:38:4310:036:45
9:01
#23798
23M
23.00 mi14:51:443:52:0610:0513:23
10:41
#23727
24M
24.00 mi15:01:164:01:3810:049:32
9:32
#23579
40K
24.85 mi15:09:454:10:0710:048:29
9:55
#23453
25.2M
25.20 mi15:14:084:14:3010:064:23
12:43
#23475
Finish
26.22 mi15:23:374:23:5910:059:29
9:18
#23387
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi237889580958025244(Top 89%)10364(Top 85%)10364(Top 1661%)
10K6.21 mi3.10 mi23811-239578+29578+223800(Top 84%)9566(Top 78%)9566(Top 1533%)
15K9.32 mi3.11 mi24370-5599887-3099887-30925244(Top 89%)10364(Top 85%)10364(Top 1661%)
20K12.43 mi3.11 mi24260+1109838+499838+4923932(Top 84%)9667(Top 79%)9667(Top 1549%)
Half13.11 mi0.68 mi24200+609810+289810+2823023(Top 81%)9167(Top 75%)9167(Top 1469%)
25K15.53 mi2.42 mi24335-1359899-899899-8924797(Top 87%)10179(Top 83%)10179(Top 1631%)
30K18.64 mi3.11 mi24307+289897+29897+224083(Top 85%)9907(Top 81%)9907(Top 1588%)
20M20.00 mi1.36 mi24035+2729772+1259772+12520094(Top 71%)7851(Top 64%)7851(Top 1258%)
21M21.00 mi1.00 mi23983+529763+99763+923000(Top 81%)9501(Top 78%)9501(Top 1523%)
35K21.75 mi0.75 mi23798+1859667+969667+9618406(Top 65%)7149(Top 58%)7149(Top 1146%)
23M23.00 mi1.25 mi23727+719648+199648+1922507(Top 79%)9347(Top 76%)9347(Top 1498%)
24M24.00 mi1.00 mi23579+1489592+569592+5619768(Top 70%)7975(Top 65%)7975(Top 1278%)
40K24.85 mi0.85 mi23453+1269530+629530+6220227(Top 71%)8278(Top 68%)8278(Top 1327%)
25.2M25.20 mi0.35 mi23475-229557-279557-2724610(Top 87%)10471(Top 86%)10471(Top 1678%)
Finish26.22 mi1.02 mi23387+889523+349523+3420432(Top 72%)8364(Top 68%)8364(Top 1340%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

25244

Females

10364

F60-64

10364

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23800

Females

9566

F60-64

9566

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

25244

Females

10364

F60-64

10364

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23932

Females

9667

F60-64

9667

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

23023

Females

9167

F60-64

9167

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24797

Females

10179

F60-64

10179

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24083

Females

9907

F60-64

9907

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20094

Females

7851

F60-64

7851

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

23000

Females

9501

F60-64

9501

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18406

Females

7149

F60-64

7149

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22507

Females

9347

F60-64

9347

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19768

Females

7975

F60-64

7975

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20227

Females

8278

F60-64

8278

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24610

Females

10471

F60-64

10471

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

20432

Females

8364

F60-64

8364

Passing Analysis

Category:
Athletes Passed
1792
Passed By
1391
Net Change
+401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23788
5K → 10K232255-23#23788#23811
10K → 15K32591-559#23811#24370
15K → 20K19181+110#24370#24260
20K → Half644+60#24260#24200
Half → 25K75210-135#24200#24335
25K → 30K157129+28#24335#24307
30K → 20M2720+272#24307#24035
20M → 21M8836+52#24035#23983
21M → 35K1850+185#23983#23798
35K → 23M10029+71#23798#23727
23M → 24M1491+148#23727#23579
24M → 40K1293+126#23579#23453
40K → 25.2M2143-22#23453#23475
25.2M → Finish979+88#23475#23387
TOTALS17921391+401
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing