Boston Marathon logo
BOSTON MARATHON 2025

Ya-Ching Chen

Bib: 22695•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
9:41/mi
30:05
↑ 97↓ 3451.5%
10K· 6.21 mi
11:27/mi
1:05:39
↑ 79↓ 1380.4%
15K· 9.32 mi
12:13/mi
1:43:35
↑ 67↓ 78
20K· 12.43 mi
13:37/mi
2:25:54
↑ 106↓ 860.1%
Half· 13.11 mi
11:29/mi
2:33:44
↑ 19↓ 370.5%
25K· 15.53 mi
13:41/mi
3:06:54
↑ 66↓ 880.2%
30K· 18.64 mi
13:51/mi
3:49:56
↑ 181↓ 1480.2%
20M
15:43/mi
4:11:17
↑ 64↓ 500.2%
21M
17:52/mi
4:29:09
↑ 106↓ 241.6%
35K· 21.75 mi
12:22/mi
4:38:24
↑ 17↓ 861.7%
23M
13:25/mi
4:55:12
↑ 23↓ 630.6%
24M
12:11/mi
5:07:23
↓ 821.3%
40K· 24.85 mi
12:32/mi
5:18:06
↓ 200.3%
25.2M
13:00/mi
5:22:35
↑ 13↓ 160.2%
Finish· 26.22 mi
11:49/mi
5:34:38
↑ 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
Time2:33:44
Pace11:44 /mi
2nd Half
Distance13.11 mi
Time3:00:54
Pace13:48 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0930:059:4130:05
9:41
-
10K
6.21 mi11:56:431:05:3910:3435:34
11:27
+1:46
15K
9.32 mi12:34:391:43:3511:0737:56
12:13
+0:46
20K
12.43 mi13:16:582:25:5411:4442:19
13:37
+1:24
Half
13.11 mi13:24:482:33:4411:447:50
11:29
-2:08
25K
15.53 mi13:57:583:06:5412:0233:10
13:41
+2:12
30K
18.64 mi14:41:003:49:5612:2043:02
13:51
+0:10
20M
20.00 mi15:02:214:11:1712:3421:21
15:43
+1:52
21M
21.00 mi15:20:134:29:0912:4917:52
17:52
+2:09
35K
21.75 mi15:29:284:38:2412:489:15
12:22
-5:30
23M
23.00 mi15:46:164:55:1212:5016:48
13:25
+1:03
24M
24.00 mi15:58:275:07:2312:4812:11
12:11
-1:14
40K
24.85 mi16:09:105:18:0612:4810:43
12:32
+0:21
25.2M
25.20 mi16:13:395:22:3512:484:29
13:00
+0:28
Finish
26.22 mi16:25:425:34:3812:4612:03
11:49
-1:11

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

9:41 /mi

Average Pace

12:46 /mi

Slowest Pace

17:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:29

22% of race

Time at Steady Pace

1:43:25

31% of race

Time at Slower Pace

2:37:44

47% of race

Average Pace: 12:46 /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 mi11:21:0930:059:4130:05
9:41
#24792
10K
6.21 mi11:56:431:05:3910:3435:34
11:27
#26610
15K
9.32 mi12:34:391:43:3511:0737:56
12:13
#27217
20K
12.43 mi13:16:582:25:5411:4442:19
13:37
#27609
Half
13.11 mi13:24:482:33:4411:447:50
11:29
#27580
25K
15.53 mi13:57:583:06:5412:0233:10
13:41
#27626
30K
18.64 mi14:41:003:49:5612:2043:02
13:51
#27596
20M
20.00 mi15:02:214:11:1712:3421:21
15:43
#27668
21M
21.00 mi15:20:134:29:0912:4917:52
17:52
#27763
35K
21.75 mi15:29:284:38:2412:489:15
12:22
#27728
23M
23.00 mi15:46:164:55:1212:5016:48
13:25
#27698
24M
24.00 mi15:58:275:07:2312:4812:11
12:11
#27650
40K
24.85 mi16:09:105:18:0612:4810:43
12:32
#27604
25.2M
25.20 mi16:13:395:22:3512:484:29
13:00
#27588
Finish
26.22 mi16:25:425:34:3812:4612:03
11:49
#27569
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi24792101091010927764(Top 98%)11841(Top 97%)11841(Top 653%)
10K6.21 mi3.10 mi26610-181811112-100311112-100327545(Top 97%)11695(Top 96%)11695(Top 645%)
15K9.32 mi3.11 mi27217-60711479-36711479-36727764(Top 98%)11841(Top 97%)11841(Top 653%)
20K12.43 mi3.11 mi27609-39211739-26011739-26028113(Top 99%)12067(Top 99%)12067(Top 666%)
Half13.11 mi0.68 mi27580+2911719+2011719+2027038(Top 95%)11442(Top 94%)11442(Top 631%)
25K15.53 mi2.42 mi27626-4611749-3011749-3027721(Top 98%)11842(Top 97%)11842(Top 653%)
30K18.64 mi3.11 mi27596+3011754-511754-527392(Top 96%)11713(Top 96%)11713(Top 646%)
20M20.00 mi1.36 mi27668-7211805-5111805-5128098(Top 99%)12103(Top 99%)12103(Top 668%)
21M21.00 mi1.00 mi27763-9511859-5411859-5428268(Top 100%)12173(Top 100%)12173(Top 671%)
35K21.75 mi0.75 mi27728+3511843+1611843+1626308(Top 93%)11247(Top 92%)11247(Top 620%)
23M23.00 mi1.25 mi27698+3011833+1011833+1026807(Top 94%)11505(Top 94%)11505(Top 635%)
24M24.00 mi1.00 mi27650+4811815+1811815+1825885(Top 91%)11082(Top 91%)11082(Top 611%)
40K24.85 mi0.85 mi27604+4611794+2111794+2125693(Top 90%)10995(Top 90%)10995(Top 606%)
25.2M25.20 mi0.35 mi27588+1611786+811786+825021(Top 88%)10707(Top 88%)10707(Top 591%)
Finish26.22 mi1.02 mi27569+1911774+1211774+1226570(Top 94%)11423(Top 93%)11423(Top 630%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

27764

Females

11841

F45-49

11841

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

27545

Females

11695

F45-49

11695

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

27764

Females

11841

F45-49

11841

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28113

Females

12067

F45-49

12067

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

27038

Females

11442

F45-49

11442

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

27721

Females

11842

F45-49

11842

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27392

Females

11713

F45-49

11713

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

28098

Females

12103

F45-49

12103

20M→21M

20.0 - 21.0 mi

Top 100%
×8story building
+106ft-24ft

Overall

28268

Females

12173

F45-49

12173

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26308

Females

11247

F45-49

11247

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

26807

Females

11505

F45-49

11505

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25885

Females

11082

F45-49

11082

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25693

Females

10995

F45-49

10995

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

25021

Females

10707

F45-49

10707

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26570

Females

11423

F45-49

11423

Passing Analysis

Category:
Athletes Passed
410
Passed By
3187
Net Change
-2777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24792
5K → 10K41822-1818#24792#26610
10K → 15K10617-607#26610#27217
15K → 20K10402-392#27217#27609
20K → Half323+29#27609#27580
Half → 25K4389-46#27580#27626
25K → 30K7343+30#27626#27596
30K → 20M1486-72#27596#27668
20M → 21M398-95#27668#27763
21M → 35K361+35#27763#27728
35K → 23M4616+30#27728#27698
23M → 24M502+48#27698#27650
24M → 40K460+46#27650#27604
40K → 25.2M193+16#27604#27588
25.2M → Finish245+19#27588#27569
TOTALS4103187-2777
📊

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