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BOSTON MARATHON 2025

Changbin Tian

Bib: 5016•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 21%
Gender (Male)
#0 / 16105
Top 33%
Masters (Masters Men)
#0 / 10463
Top 20%
Division (M50-54)
#0 / 1996
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:21
Rank: #4201
Start → 5K
20:21 | 6:33/mi
10K· 6.21 mi
41:14
Rank: #4781 (-580)
5K → 10K
20:53 | 6:43/mi
15K· 9.32 mi
1:02:20
Rank: #5135 (-354)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:23:36
Rank: #5242 (-107)
15K → 20K
21:16 | 6:51/mi
Half· 13.11 mi
1:28:10
Rank: #5221 (+21)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:45:13
Rank: #5494 (-273)
Half → 25K
17:03 | 7:02/mi
30K· 18.64 mi
2:08:11
Rank: #5792 (-298)
25K → 30K
22:58 | 7:24/mi
20M
2:18:34
Rank: #5925 (-133)
30K → 20M
10:23 | 7:38/mi
21M
2:26:32
Rank: #5939 (-14)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:32:03
Rank: #5976 (-37)
21M → 35K
5:31 | 7:22/mi
23M
2:41:52
Rank: #6024 (-48)
35K → 23M
9:49 | 7:50/mi
24M
2:49:25
Rank: #6063 (-39)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
2:56:02
Rank: #6067 (-4)
24M → 40K
6:37 | 7:44/mi
25.2M
2:58:53
Rank: #6068 (-1)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:06:23
Rank: #6097 (-29)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:10
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:38:13
Pace7:30 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3120:216:3320:21
6:33
-
10K
6.21 mi10:45:2441:146:3820:53
6:43
+0:10
15K
9.32 mi11:06:301:02:206:4121:06
6:47
+0:04
20K
12.43 mi11:27:461:23:366:4421:16
6:51
+0:04
Half
13.11 mi11:32:201:28:106:444:34
6:42
-0:09
25K
15.53 mi11:49:231:45:136:4617:03
7:02
+0:20
30K
18.64 mi12:12:212:08:116:5322:58
7:24
+0:22
20M
20.00 mi12:22:442:18:346:5610:23
7:38
+0:14
21M
21.00 mi12:30:422:26:326:597:58
7:58
+0:20
35K
21.75 mi12:36:132:32:036:595:31
7:22
-0:36
23M
23.00 mi12:46:022:41:527:029:49
7:50
+0:28
24M
24.00 mi12:53:352:49:257:047:33
7:33
-0:17
40K
24.85 mi13:00:122:56:027:056:37
7:44
+0:11
25.2M
25.20 mi13:03:032:58:537:062:51
8:16
+0:32
Finish
26.22 mi13:10:333:06:237:077:30
7:22
-0:54

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

6:33 /mi

Average Pace

7:07 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:13

56% of race

Time at Steady Pace

43:32

23% of race

Time at Slower Pace

37:38

20% of race

Average Pace: 7:07 /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 mi10:24:3120:216:3320:21
6:33
#4201
10K
6.21 mi10:45:2441:146:3820:53
6:43
#4781
15K
9.32 mi11:06:301:02:206:4121:06
6:47
#5135
20K
12.43 mi11:27:461:23:366:4421:16
6:51
#5242
Half
13.11 mi11:32:201:28:106:444:34
6:42
#5221
25K
15.53 mi11:49:231:45:136:4617:03
7:02
#5494
30K
18.64 mi12:12:212:08:116:5322:58
7:24
#5792
20M
20.00 mi12:22:442:18:346:5610:23
7:38
#5925
21M
21.00 mi12:30:422:26:326:597:58
7:58
#5939
35K
21.75 mi12:36:132:32:036:595:31
7:22
#5976
23M
23.00 mi12:46:022:41:527:029:49
7:50
#6024
24M
24.00 mi12:53:352:49:257:047:33
7:33
#6063
40K
24.85 mi13:00:122:56:027:056:37
7:44
#6067
25.2M
25.20 mi13:03:032:58:537:062:51
8:16
#6068
Finish
26.22 mi13:10:333:06:237:077:30
7:22
#6097
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4201395339535996(Top 21%)5450(Top 34%)5450(Top 273%)
10K6.21 mi3.10 mi4781-5804472-5194472-5195525(Top 19%)5086(Top 32%)5086(Top 255%)
15K9.32 mi3.11 mi5135-3544779-3074779-3075996(Top 21%)5450(Top 34%)5450(Top 273%)
20K12.43 mi3.11 mi5242-1074856-774856-775736(Top 20%)5226(Top 32%)5226(Top 262%)
Half13.11 mi0.68 mi5221+214838+184838+185205(Top 18%)4800(Top 30%)4800(Top 240%)
25K15.53 mi2.42 mi5494-2735049-2115049-2116515(Top 23%)5769(Top 36%)5769(Top 289%)
30K18.64 mi3.11 mi5792-2985271-2225271-2226997(Top 25%)5968(Top 37%)5968(Top 299%)
20M20.00 mi1.36 mi5925-1335364-935364-937939(Top 28%)6393(Top 40%)6393(Top 320%)
21M21.00 mi1.00 mi5939-145360+45360+47138(Top 25%)5753(Top 36%)5753(Top 288%)
35K21.75 mi0.75 mi5976-375377-175377-177656(Top 27%)6073(Top 38%)6073(Top 304%)
23M23.00 mi1.25 mi6024-485404-275404-278827(Top 31%)6615(Top 41%)6615(Top 331%)
24M24.00 mi1.00 mi6063-395416-125416-128009(Top 28%)6104(Top 38%)6104(Top 306%)
40K24.85 mi0.85 mi6067-45398+185398+188301(Top 29%)6139(Top 38%)6139(Top 308%)
25.2M25.20 mi0.35 mi6068-15388+105388+107350(Top 26%)5515(Top 34%)5515(Top 276%)
Finish26.22 mi1.02 mi6097-295385+35385+38148(Top 29%)5981(Top 37%)5981(Top 300%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5996

Males

5450

M50-54

5450

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5525

Males

5086

M50-54

5086

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5996

Males

5450

M50-54

5450

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5736

Males

5226

M50-54

5226

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5205

Males

4800

M50-54

4800

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6515

Males

5769

M50-54

5769

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

6997

Males

5968

M50-54

5968

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7939

Males

6393

M50-54

6393

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

7138

Males

5753

M50-54

5753

21M→35K

21.0 - 21.8 mi

Top 27%
×7stories
+17ft-86ft

Overall

7656

Males

6073

M50-54

6073

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8827

Males

6615

M50-54

6615

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

8009

Males

6104

M50-54

6104

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8301

Males

6139

M50-54

6139

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7350

Males

5515

M50-54

5515

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8148

Males

5981

M50-54

5981

Passing Analysis

Category:
Athletes Passed
712
Passed By
2608
Net Change
-1896
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4201
5K → 10K18598-580#4201#4781
10K → 15K36390-354#4781#5135
15K → 20K88195-107#5135#5242
20K → Half4221+21#5242#5221
Half → 25K47320-273#5221#5494
25K → 30K110408-298#5494#5792
30K → 20M35168-133#5792#5925
20M → 21M6478-14#5925#5939
21M → 35K3168-37#5939#5976
35K → 23M66114-48#5976#6024
23M → 24M4786-39#6024#6063
24M → 40K5155-4#6063#6067
40K → 25.2M2930-1#6067#6068
25.2M → Finish4877-29#6068#6097
TOTALS7122608-1896
📊

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