Boston Marathon logo
BOSTON MARATHON 2025

Xiaofei Yang

Bib: 7527•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:14
Rank: #3943
Start → 5K
20:14 | 6:31/mi
10K· 6.21 mi
41:42
Rank: #5483 (-1540)
5K → 10K
21:28 | 6:55/mi
15K· 9.32 mi
1:03:46
Rank: #6593 (-1110)
10K → 15K
22:04 | 7:06/mi
20K· 12.43 mi
1:28:15
Rank: #8190 (-1597)
15K → 20K
24:29 | 7:53/mi
Half· 13.11 mi
1:33:36
Rank: #8458 (-268)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
1:55:32
Rank: #10778 (-2320)
Half → 25K
21:56 | 9:03/mi
30K· 18.64 mi
2:24:14
Rank: #12571 (-1793)
25K → 30K
28:42 | 9:14/mi
20M
2:36:59
Rank: #13120 (-549)
30K → 20M
12:45 | 9:23/mi
21M
2:47:13
Rank: #13575 (-455)
20M → 21M
10:14 | 10:14/mi
35K· 21.75 mi
2:54:05
Rank: #13811 (-236)
21M → 35K
6:52 | 9:11/mi
23M
3:06:49
Rank: #14485 (-674)
35K → 23M
12:44 | 10:10/mi
24M
3:17:11
Rank: #14995 (-510)
23M → 24M
10:22 | 10:22/mi
40K· 24.85 mi
3:25:58
Rank: #15357 (-362)
24M → 40K
8:47 | 10:16/mi
25.2M
3:29:35
Rank: #15416 (-59)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
3:39:07
Rank: #15653 (-237)
25.2M → Finish
9:32 | 9:21/mi

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
Time1:33:36
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time2:05:31
Pace9:34 /mi
📊Positive Split: 34.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:2320:146:3120:14
6:31
-
10K
6.21 mi10:48:5141:426:4321:28
6:55
+0:24
15K
9.32 mi11:10:551:03:466:5022:04
7:06
+0:11
20K
12.43 mi11:35:241:28:157:0624:29
7:53
+0:47
Half
13.11 mi11:40:451:33:367:085:21
7:50
-0:03
25K
15.53 mi12:02:411:55:327:2621:56
9:03
+1:13
30K
18.64 mi12:31:232:24:147:4428:42
9:14
+0:11
20M
20.00 mi12:44:082:36:597:5112:45
9:23
+0:09
21M
21.00 mi12:54:222:47:137:5810:14
10:14
+0:51
35K
21.75 mi13:01:142:54:058:006:52
9:11
-1:03
23M
23.00 mi13:13:583:06:498:0712:44
10:10
+0:59
24M
24.00 mi13:24:203:17:118:1310:22
10:22
+0:12
40K
24.85 mi13:33:073:25:588:178:47
10:16
-0:06
25.2M
25.20 mi13:36:443:29:358:193:37
10:29
+0:13
Finish
26.22 mi13:46:163:39:078:229:32
9:21
-1:08

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

6:31 /mi

Average Pace

8:22 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:36

43% of race

Time at Steady Pace

1:19:47

36% of race

Time at Slower Pace

45:44

21% of race

Average Pace: 8:21 /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 mi10:27:2320:146:3120:14
6:31
#3943
10K
6.21 mi10:48:5141:426:4321:28
6:55
#5483
15K
9.32 mi11:10:551:03:466:5022:04
7:06
#6593
20K
12.43 mi11:35:241:28:157:0624:29
7:53
#8190
Half
13.11 mi11:40:451:33:367:085:21
7:50
#8458
25K
15.53 mi12:02:411:55:327:2621:56
9:03
#10778
30K
18.64 mi12:31:232:24:147:4428:42
9:14
#12571
20M
20.00 mi12:44:082:36:597:5112:45
9:23
#13120
21M
21.00 mi12:54:222:47:137:5810:14
10:14
#13575
35K
21.75 mi13:01:142:54:058:006:52
9:11
#13811
23M
23.00 mi13:13:583:06:498:0712:44
10:10
#14485
24M
24.00 mi13:24:203:17:118:1310:22
10:22
#14995
40K
24.85 mi13:33:073:25:588:178:47
10:16
#15357
25.2M
25.20 mi13:36:443:29:358:193:37
10:29
#15416
Finish
26.22 mi13:46:163:39:078:229:32
9:21
#15653
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3943373337338356(Top 29%)7156(Top 44%)7156(Top 318%)
10K6.21 mi3.10 mi5483-15405070-13375070-13377308(Top 26%)6517(Top 40%)6517(Top 290%)
15K9.32 mi3.11 mi6593-11105957-8875957-8878356(Top 29%)7156(Top 44%)7156(Top 318%)
20K12.43 mi3.11 mi8190-15977074-11177074-111713925(Top 49%)9838(Top 61%)9838(Top 438%)
Half13.11 mi0.68 mi8458-2687233-1597233-15914574(Top 51%)10155(Top 63%)10155(Top 452%)
25K15.53 mi2.42 mi10778-23208477-12448477-124420100(Top 71%)12458(Top 77%)12458(Top 554%)
30K18.64 mi3.11 mi12571-17939231-7549231-75418814(Top 66%)11743(Top 73%)11743(Top 523%)
20M20.00 mi1.36 mi13120-5499439-2089439-20818650(Top 66%)11516(Top 72%)11516(Top 513%)
21M21.00 mi1.00 mi13575-4559601-1629601-16219113(Top 67%)11669(Top 72%)11669(Top 519%)
35K21.75 mi0.75 mi13811-2369691-909691-9019047(Top 67%)11511(Top 71%)11511(Top 512%)
23M23.00 mi1.25 mi14485-6749965-2749965-27421010(Top 74%)12394(Top 77%)12394(Top 552%)
24M24.00 mi1.00 mi14995-51010154-18910154-18922430(Top 79%)13012(Top 81%)13012(Top 579%)
40K24.85 mi0.85 mi15357-36210268-11410268-11421281(Top 75%)12414(Top 77%)12414(Top 552%)
25.2M25.20 mi0.35 mi15416-5910284-1610284-1618915(Top 67%)11270(Top 70%)11270(Top 502%)
Finish26.22 mi1.02 mi15653-23710370-8610370-8620588(Top 72%)12089(Top 75%)12089(Top 538%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

8356

Males

7156

M40-44

7156

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7308

Males

6517

M40-44

6517

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

8356

Males

7156

M40-44

7156

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13925

Males

9838

M40-44

9838

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

14574

Males

10155

M40-44

10155

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

20100

Males

12458

M40-44

12458

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

18814

Males

11743

M40-44

11743

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18650

Males

11516

M40-44

11516

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

19113

Males

11669

M40-44

11669

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

19047

Males

11511

M40-44

11511

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21010

Males

12394

M40-44

12394

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

22430

Males

13012

M40-44

13012

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21281

Males

12414

M40-44

12414

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

18915

Males

11270

M40-44

11270

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

20588

Males

12089

M40-44

12089

Passing Analysis

Category:
Athletes Passed
213
Passed By
11921
Net Change
-11710
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3943
5K → 10K21542-1540#3943#5483
10K → 15K191129-1110#5483#6593
15K → 20K71604-1597#6593#8190
20K → Half2270-268#8190#8458
Half → 25K92327-2320#8458#10778
25K → 30K231816-1793#10778#12571
30K → 20M39588-549#12571#13120
20M → 21M27482-455#13120#13575
21M → 35K16252-236#13575#13811
35K → 23M18692-674#13811#14485
23M → 24M12522-510#14485#14995
24M → 40K12374-362#14995#15357
40K → 25.2M1170-59#15357#15416
25.2M → Finish16253-237#15416#15653
TOTALS21311921-11710
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing