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BOSTON MARATHON 2025

Tian Bu

Bib: 10142•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 30%
Gender (Male)
#0 / 16105
Top 43%
Masters (Masters Men)
#0 / 10463
Top 31%
Division (M50-54)
#0 / 1996
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:06
Rank: #11644
Start → 5K
23:06 | 7:26/mi
10K· 6.21 mi
45:43
Rank: #10836 (+808)
5K → 10K
22:37 | 7:17/mi
15K· 9.32 mi
1:08:20
Rank: #10492 (+344)
10K → 15K
22:37 | 7:17/mi
20K· 12.43 mi
1:30:55
Rank: #10002 (+490)
15K → 20K
22:35 | 7:16/mi
Half· 13.11 mi
1:35:50
Rank: #9964 (+38)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:54:03
Rank: #9918 (+46)
Half → 25K
18:13 | 7:31/mi
30K· 18.64 mi
2:17:38
Rank: #9560 (+358)
25K → 30K
23:35 | 7:35/mi
20M
2:28:06
Rank: #9419 (+141)
30K → 20M
10:28 | 7:42/mi
21M
2:36:12
Rank: #9291 (+128)
20M → 21M
8:06 | 8:06/mi
35K· 21.75 mi
2:41:31
Rank: #9138 (+153)
21M → 35K
5:19 | 7:06/mi
23M
2:51:08
Rank: #8980 (+158)
35K → 23M
9:37 | 7:41/mi
24M
2:58:35
Rank: #8875 (+105)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:05:04
Rank: #8767 (+108)
24M → 40K
6:29 | 7:35/mi
25.2M
3:07:58
Rank: #8738 (+29)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:15:08
Rank: #8600 (+138)
25.2M → Finish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:50
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:39:18
Pace7:34 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1023:067:2623:06
7:26
-
10K
6.21 mi11:11:4745:437:2122:37
7:17
-0:09
15K
9.32 mi11:34:241:08:207:2022:37
7:17
0:00
20K
12.43 mi11:56:591:30:557:1922:35
7:16
-0:01
Half
13.11 mi12:01:541:35:507:194:55
7:12
-0:04
25K
15.53 mi12:20:071:54:037:2118:13
7:31
+0:19
30K
18.64 mi12:43:422:17:387:2323:35
7:35
+0:04
20M
20.00 mi12:54:102:28:067:2410:28
7:42
+0:07
21M
21.00 mi13:02:162:36:127:268:06
8:06
+0:24
35K
21.75 mi13:07:352:41:317:265:19
7:06
-1:00
23M
23.00 mi13:17:122:51:087:269:37
7:41
+0:35
24M
24.00 mi13:24:392:58:357:267:27
7:27
-0:14
40K
24.85 mi13:31:083:05:047:276:29
7:35
+0:08
25.2M
25.20 mi13:34:023:07:587:282:54
8:25
+0:50
Finish
26.22 mi13:41:123:15:087:277:10
7:02
-1:23

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

7:02 /mi

Average Pace

7:27 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:08

94% of race

Time at Steady Pace

8:06

4% of race

Time at Slower Pace

2:54

1% of race

Average Pace: 7:27 /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 mi10:49:1023:067:2623:06
7:26
#11644
10K
6.21 mi11:11:4745:437:2122:37
7:17
#10836
15K
9.32 mi11:34:241:08:207:2022:37
7:17
#10492
20K
12.43 mi11:56:591:30:557:1922:35
7:16
#10002
Half
13.11 mi12:01:541:35:507:194:55
7:12
#9964
25K
15.53 mi12:20:071:54:037:2118:13
7:31
#9918
30K
18.64 mi12:43:422:17:387:2323:35
7:35
#9560
20M
20.00 mi12:54:102:28:067:2410:28
7:42
#9419
21M
21.00 mi13:02:162:36:127:268:06
8:06
#9291
35K
21.75 mi13:07:352:41:317:265:19
7:06
#9138
23M
23.00 mi13:17:122:51:087:269:37
7:41
#8980
24M
24.00 mi13:24:392:58:357:267:27
7:27
#8875
40K
24.85 mi13:31:083:05:047:276:29
7:35
#8767
25.2M
25.20 mi13:34:023:07:587:282:54
8:25
#8738
Finish
26.22 mi13:41:123:15:087:277:10
7:02
#8600
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11644900990099815(Top 35%)7978(Top 50%)7978(Top 400%)
10K6.21 mi3.10 mi10836+8088578+4318578+43110167(Top 36%)8239(Top 51%)8239(Top 413%)
15K9.32 mi3.11 mi10492+3448391+1878391+1879815(Top 35%)7978(Top 50%)7978(Top 400%)
20K12.43 mi3.11 mi10002+4908105+2868105+2868772(Top 31%)7320(Top 45%)7320(Top 367%)
Half13.11 mi0.68 mi9964+388085+208085+209086(Top 32%)7518(Top 47%)7518(Top 377%)
25K15.53 mi2.42 mi9918+468024+618024+6110064(Top 35%)7907(Top 49%)7907(Top 396%)
30K18.64 mi3.11 mi9560+3587773+2517773+2518378(Top 29%)6813(Top 42%)6813(Top 341%)
20M20.00 mi1.36 mi9419+1417661+1127661+1128348(Top 29%)6641(Top 41%)6641(Top 333%)
21M21.00 mi1.00 mi9291+1287555+1067555+1067942(Top 28%)6224(Top 39%)6224(Top 312%)
35K21.75 mi0.75 mi9138+1537454+1017454+1016044(Top 21%)5101(Top 32%)5101(Top 256%)
23M23.00 mi1.25 mi8980+1587323+1317323+1317768(Top 27%)6027(Top 37%)6027(Top 302%)
24M24.00 mi1.00 mi8875+1057231+927231+927346(Top 26%)5733(Top 36%)5733(Top 287%)
40K24.85 mi0.85 mi8767+1087124+1077124+1077303(Top 26%)5609(Top 35%)5609(Top 281%)
25.2M25.20 mi0.35 mi8738+297093+317093+318205(Top 29%)6029(Top 37%)6029(Top 302%)
Finish26.22 mi1.02 mi8600+1386989+1046989+1045951(Top 21%)4709(Top 29%)4709(Top 236%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9815

Males

7978

M50-54

7978

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10167

Males

8239

M50-54

8239

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9815

Males

7978

M50-54

7978

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8772

Males

7320

M50-54

7320

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9086

Males

7518

M50-54

7518

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

10064

Males

7907

M50-54

7907

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8378

Males

6813

M50-54

6813

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8348

Males

6641

M50-54

6641

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7942

Males

6224

M50-54

6224

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

6044

Males

5101

M50-54

5101

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7768

Males

6027

M50-54

6027

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7346

Males

5733

M50-54

5733

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7303

Males

5609

M50-54

5609

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8205

Males

6029

M50-54

6029

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5951

Males

4709

M50-54

4709

Passing Analysis

Category:
Athletes Passed
3529*
Passed By
484
Net Change
+3044
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11644
5K → 10K85850+808#11644#10836
10K → 15K38339+344#10836#10492
15K → 20K50211+490#10492#10002
20K → Half48*10+38#10002#9964
Half → 25K167121+46#9964#9918
25K → 30K42365+358#9918#9560
30K → 20M17332+141#9560#9419
20M → 21M15729+128#9419#9291
21M → 35K1563+153#9291#9138
35K → 23M19133+158#9138#8980
23M → 24M13328+105#8980#8875
24M → 40K13022+108#8875#8767
40K → 25.2M5122+29#8767#8738
25.2M → Finish15719+138#8738#8600
TOTALS3529*484+3044

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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