Boston Marathon logo
BOSTON MARATHON 2025

Xiang Liu

Bib: 21868•M

PA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:26
Rank: #19913
Start → 5K
26:26 | 8:30/mi
10K· 6.21 mi
52:52
Rank: #19878 (+35)
5K → 10K
26:26 | 8:30/mi
15K· 9.32 mi
1:19:44
Rank: #19998 (-120)
10K → 15K
26:52 | 8:39/mi
20K· 12.43 mi
1:47:17
Rank: #20038 (-40)
15K → 20K
27:33 | 8:52/mi
Half· 13.11 mi
1:53:04
Rank: #19989 (+49)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:14:07
Rank: #19701 (+288)
Half → 25K
21:03 | 8:41/mi
30K· 18.64 mi
2:41:31
Rank: #19130 (+571)
25K → 30K
27:24 | 8:49/mi
20M
2:53:55
Rank: #19005 (+125)
30K → 20M
12:24 | 9:07/mi
21M
3:03:26
Rank: #18811 (+194)
20M → 21M
9:31 | 9:31/mi
35K· 21.75 mi
3:10:15
Rank: #18821 (-10)
21M → 35K
6:49 | 9:07/mi
23M
3:21:37
Rank: #18675 (+146)
35K → 23M
11:22 | 9:05/mi
24M
3:30:37
Rank: #18615 (+60)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:38:35
Rank: #18578 (+37)
24M → 40K
7:58 | 9:19/mi
25.2M
3:42:14
Rank: #18600 (-22)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:51:01
Rank: #18545 (+55)
25.2M → Finish
8:47 | 8:37/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
Time1:53:04
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time1:57:57
Pace9:00 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3426:268:3026:26
8:30
-
10K
6.21 mi11:48:0052:528:3026:26
8:30
0:00
15K
9.32 mi12:14:521:19:448:3326:52
8:39
+0:09
20K
12.43 mi12:42:251:47:178:3827:33
8:52
+0:13
Half
13.11 mi12:48:121:53:048:375:47
8:29
-0:23
25K
15.53 mi13:09:152:14:078:3821:03
8:41
+0:12
30K
18.64 mi13:36:392:41:318:4027:24
8:49
+0:08
20M
20.00 mi13:49:032:53:558:4212:24
9:07
+0:18
21M
21.00 mi13:58:343:03:268:449:31
9:31
+0:24
35K
21.75 mi14:05:233:10:158:456:49
9:07
-0:24
23M
23.00 mi14:16:453:21:378:4611:22
9:05
-0:02
24M
24.00 mi14:25:453:30:378:479:00
9:00
-0:05
40K
24.85 mi14:33:433:38:358:487:58
9:19
+0:19
25.2M
25.20 mi14:37:223:42:148:493:39
10:35
+1:16
Finish
26.22 mi14:46:093:51:018:498:47
8:37
-1:58

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

8:29 /mi

Average Pace

8:49 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:39

25% of race

Time at Steady Pace

2:31:14

65% of race

Time at Slower Pace

21:08

9% of race

Average Pace: 8:49 /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 mi11:21:3426:268:3026:26
8:30
#19913
10K
6.21 mi11:48:0052:528:3026:26
8:30
#19878
15K
9.32 mi12:14:521:19:448:3326:52
8:39
#19998
20K
12.43 mi12:42:251:47:178:3827:33
8:52
#20038
Half
13.11 mi12:48:121:53:048:375:47
8:29
#19989
25K
15.53 mi13:09:152:14:078:3821:03
8:41
#19701
30K
18.64 mi13:36:392:41:318:4027:24
8:49
#19130
20M
20.00 mi13:49:032:53:558:4212:24
9:07
#19005
21M
21.00 mi13:58:343:03:268:449:31
9:31
#18811
35K
21.75 mi14:05:233:10:158:456:49
9:07
#18821
23M
23.00 mi14:16:453:21:378:4611:22
9:05
#18675
24M
24.00 mi14:25:453:30:378:479:00
9:00
#18615
40K
24.85 mi14:33:433:38:358:487:58
9:19
#18578
25.2M
25.20 mi14:37:223:42:148:493:39
10:35
#18600
Finish
26.22 mi14:46:093:51:018:498:47
8:37
#18545
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19913124021240220189(Top 71%)12592(Top 78%)12592(Top 1000%)
10K6.21 mi3.10 mi19878+3512419-1712419-1719837(Top 70%)12400(Top 77%)12400(Top 985%)
15K9.32 mi3.11 mi19998-12012478-5912478-5920189(Top 71%)12592(Top 78%)12592(Top 1000%)
20K12.43 mi3.11 mi20038-4012487-912487-920302(Top 71%)12594(Top 78%)12594(Top 1000%)
Half13.11 mi0.68 mi19989+4912461+2612461+2618996(Top 67%)12036(Top 75%)12036(Top 956%)
25K15.53 mi2.42 mi19701+28812329+13212329+13218270(Top 64%)11648(Top 72%)11648(Top 925%)
30K18.64 mi3.11 mi19130+57112041+28812041+28816708(Top 59%)10801(Top 67%)10801(Top 858%)
20M20.00 mi1.36 mi19005+12511968+7311968+7317422(Top 61%)10996(Top 68%)10996(Top 873%)
21M21.00 mi1.00 mi18811+19411865+10311865+10316159(Top 57%)10327(Top 64%)10327(Top 820%)
35K21.75 mi0.75 mi18821-1011848+1711848+1718741(Top 66%)11367(Top 71%)11367(Top 903%)
23M23.00 mi1.25 mi18675+14611749+9911749+9916690(Top 59%)10380(Top 64%)10380(Top 824%)
24M24.00 mi1.00 mi18615+6011707+4211707+4217356(Top 61%)10633(Top 66%)10633(Top 845%)
40K24.85 mi0.85 mi18578+3711662+4511662+4517917(Top 63%)10784(Top 67%)10784(Top 857%)
25.2M25.20 mi0.35 mi18600-2211660+211660+219274(Top 68%)11433(Top 71%)11433(Top 908%)
Finish26.22 mi1.02 mi18545+5511617+4311617+4316950(Top 60%)10374(Top 64%)10374(Top 824%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20189

Males

12592

M60-64

12592

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19837

Males

12400

M60-64

12400

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20189

Males

12592

M60-64

12592

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20302

Males

12594

M60-64

12594

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18996

Males

12036

M60-64

12036

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

18270

Males

11648

M60-64

11648

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16708

Males

10801

M60-64

10801

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17422

Males

10996

M60-64

10996

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16159

Males

10327

M60-64

10327

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18741

Males

11367

M60-64

11367

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16690

Males

10380

M60-64

10380

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17356

Males

10633

M60-64

10633

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17917

Males

10784

M60-64

10784

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19274

Males

11433

M60-64

11433

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16950

Males

10374

M60-64

10374

Passing Analysis

Category:
Athletes Passed
2512
Passed By
1144
Net Change
+1368
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19913
5K → 10K298263+35#19913#19878
10K → 15K150270-120#19878#19998
15K → 20K180220-40#19998#20038
20K → Half556+49#20038#19989
Half → 25K31830+288#19989#19701
25K → 30K59221+571#19701#19130
30K → 20M16237+125#19130#19005
20M → 21M21723+194#19005#18811
21M → 35K5666-10#18811#18821
35K → 23M18135+146#18821#18675
23M → 24M8929+60#18675#18615
24M → 40K10164+37#18615#18578
40K → 25.2M2244-22#18578#18600
25.2M → Finish9136+55#18600#18545
TOTALS25121144+1368
📊

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