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BOSTON MARATHON 2025

Jian Tan

Bib: 5633•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 25%
Masters (Masters Men)
#0 / 10463
Top 11%
Division (M45-49)
#0 / 2386
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:51
Rank: #5542
Start → 5K
20:51 | 6:43/mi
10K· 6.21 mi
41:42
Rank: #5473 (+69)
5K → 10K
20:51 | 6:43/mi
15K· 9.32 mi
1:02:31
Rank: #5315 (+158)
10K → 15K
20:49 | 6:42/mi
20K· 12.43 mi
1:23:38
Rank: #5269 (+46)
15K → 20K
21:07 | 6:48/mi
Half· 13.11 mi
1:28:14
Rank: #5283 (-14)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:44
Rank: #5188 (+95)
Half → 25K
16:30 | 6:48/mi
30K· 18.64 mi
2:06:12
Rank: #4916 (+272)
25K → 30K
21:28 | 6:55/mi
20M
2:15:43
Rank: #4820 (+96)
30K → 20M
9:31 | 7:00/mi
21M
2:23:08
Rank: #4741 (+79)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:28:07
Rank: #4645 (+96)
21M → 35K
4:59 | 6:40/mi
23M
2:36:49
Rank: #4524 (+121)
35K → 23M
8:42 | 6:57/mi
24M
2:43:37
Rank: #4451 (+73)
23M → 24M
6:48 | 6:48/mi
40K· 24.85 mi
2:49:37
Rank: #4415 (+36)
24M → 40K
6:00 | 7:01/mi
25.2M
2:52:17
Rank: #4413 (+2)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
2:59:18
Rank: #4445 (-32)
25.2M → Finish
7:01 | 6:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:14
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:31:04
Pace6:57 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0820:516:4320:51
6:43
-
10K
6.21 mi10:45:5941:426:4320:51
6:43
0:00
15K
9.32 mi11:06:481:02:316:4220:49
6:42
-0:01
20K
12.43 mi11:27:551:23:386:4421:07
6:48
+0:06
Half
13.11 mi11:32:311:28:146:444:36
6:45
-0:03
25K
15.53 mi11:49:011:44:446:4516:30
6:48
+0:03
30K
18.64 mi12:10:292:06:126:4621:28
6:55
+0:07
20M
20.00 mi12:20:002:15:436:479:31
7:00
+0:05
21M
21.00 mi12:27:252:23:086:497:25
7:25
+0:25
35K
21.75 mi12:32:242:28:076:494:59
6:40
-0:45
23M
23.00 mi12:41:062:36:496:498:42
6:57
+0:17
24M
24.00 mi12:47:542:43:376:496:48
6:48
-0:09
40K
24.85 mi12:53:542:49:376:496:00
7:01
+0:13
25.2M
25.20 mi12:56:342:52:176:502:40
7:44
+0:43
Finish
26.22 mi13:03:352:59:186:517:01
6:53
-0:51

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

6:40 /mi

Average Pace

6:51 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:13

94% of race

Time at Steady Pace

10:05

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:25:0820:516:4320:51
6:43
#5542
10K
6.21 mi10:45:5941:426:4320:51
6:43
#5473
15K
9.32 mi11:06:481:02:316:4220:49
6:42
#5315
20K
12.43 mi11:27:551:23:386:4421:07
6:48
#5269
Half
13.11 mi11:32:311:28:146:444:36
6:45
#5283
25K
15.53 mi11:49:011:44:446:4516:30
6:48
#5188
30K
18.64 mi12:10:292:06:126:4621:28
6:55
#4916
20M
20.00 mi12:20:002:15:436:479:31
7:00
#4820
21M
21.00 mi12:27:252:23:086:497:25
7:25
#4741
35K
21.75 mi12:32:242:28:076:494:59
6:40
#4645
23M
23.00 mi12:41:062:36:496:498:42
6:57
#4524
24M
24.00 mi12:47:542:43:376:496:48
6:48
#4451
40K
24.85 mi12:53:542:49:376:496:00
7:01
#4415
25.2M
25.20 mi12:56:342:52:176:502:40
7:44
#4413
Finish
26.22 mi13:03:352:59:186:517:01
6:53
#4445
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5542513251325083(Top 18%)4718(Top 29%)4718(Top 198%)
10K6.21 mi3.10 mi5473+695060+725060+725442(Top 19%)5026(Top 31%)5026(Top 211%)
15K9.32 mi3.11 mi5315+1584930+1304930+1305083(Top 18%)4718(Top 29%)4718(Top 198%)
20K12.43 mi3.11 mi5269+464882+484882+485266(Top 19%)4841(Top 30%)4841(Top 203%)
Half13.11 mi0.68 mi5283-144890-84890-85633(Top 20%)5153(Top 32%)5153(Top 216%)
25K15.53 mi2.42 mi5188+954805+854805+854917(Top 17%)4518(Top 28%)4518(Top 189%)
30K18.64 mi3.11 mi4916+2724545+2604545+2604144(Top 15%)3811(Top 24%)3811(Top 160%)
20M20.00 mi1.36 mi4820+964463+824463+824132(Top 15%)3785(Top 24%)3785(Top 159%)
21M21.00 mi1.00 mi4741+794387+764387+764205(Top 15%)3784(Top 23%)3784(Top 159%)
35K21.75 mi0.75 mi4645+964294+934294+933319(Top 12%)3035(Top 19%)3035(Top 127%)
23M23.00 mi1.25 mi4524+1214176+1184176+1183480(Top 12%)3163(Top 20%)3163(Top 133%)
24M24.00 mi1.00 mi4451+734107+694107+693535(Top 12%)3170(Top 20%)3170(Top 133%)
40K24.85 mi0.85 mi4415+364067+404067+404030(Top 14%)3518(Top 22%)3518(Top 147%)
25.2M25.20 mi0.35 mi4413+24063+44063+44517(Top 16%)3795(Top 24%)3795(Top 159%)
Finish26.22 mi1.02 mi4445-324078-154078-154987(Top 18%)4102(Top 25%)4102(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5083

Males

4718

M45-49

4718

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5442

Males

5026

M45-49

5026

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5083

Males

4718

M45-49

4718

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5266

Males

4841

M45-49

4841

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5633

Males

5153

M45-49

5153

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4917

Males

4518

M45-49

4518

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4144

Males

3811

M45-49

3811

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4132

Males

3785

M45-49

3785

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4205

Males

3784

M45-49

3784

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3319

Males

3035

M45-49

3035

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3480

Males

3163

M45-49

3163

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3535

Males

3170

M45-49

3170

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4030

Males

3518

M45-49

3518

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4517

Males

3795

M45-49

3795

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4987

Males

4102

M45-49

4102

Passing Analysis

Category:
Athletes Passed
1757
Passed By
660
Net Change
+1097
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5542
5K → 10K222153+69#5542#5473
10K → 15K20850+158#5473#5315
15K → 20K146100+46#5315#5269
20K → Half2337-14#5269#5283
Half → 25K16368+95#5283#5188
25K → 30K30836+272#5188#4916
30K → 20M12125+96#4916#4820
20M → 21M10526+79#4820#4741
21M → 35K1026+96#4741#4645
35K → 23M14221+121#4645#4524
23M → 24M9017+73#4524#4451
24M → 40K6529+36#4451#4415
40K → 25.2M2523+2#4415#4413
25.2M → Finish3769-32#4413#4445
TOTALS1757660+1097
📊

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