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BOSTON MARATHON 2025

Joel Tan

Bib: 4331•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Age Group (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
21:37
Rank: #7502
Start → 5K
21:37 | 6:57/mi
10K· 6.21 mi
45:06
Rank: #9968 (-2466)
5K → 10K
23:29 | 7:34/mi
15K· 9.32 mi
1:09:43
Rank: #11818 (-1850)
10K → 15K
24:37 | 7:55/mi
20K· 12.43 mi
1:34:55
Rank: #12813 (-995)
15K → 20K
25:12 | 8:07/mi
Half· 13.11 mi
1:40:31
Rank: #13076 (-263)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:04:21
Rank: #15581 (-2505)
Half → 25K
23:50 | 9:50/mi
30K· 18.64 mi
2:47:23
Rank: #20770 (-5189)
25K → 30K
43:02 | 13:51/mi
20M
3:03:50
Rank: #21417 (-647)
30K → 20M
16:27 | 12:06/mi
21M
3:13:10
Rank: #21115 (+302)
20M → 21M
9:20 | 9:20/mi
35K· 21.75 mi
3:20:09
Rank: #21043 (+72)
21M → 35K
6:59 | 9:20/mi
23M
3:31:51
Rank: #20876 (+167)
35K → 23M
11:42 | 9:20/mi
24M
3:40:24
Rank: #20654 (+222)
23M → 24M
8:33 | 8:33/mi
40K· 24.85 mi
3:47:44
Rank: #20463 (+191)
24M → 40K
7:20 | 8:35/mi
25.2M
3:50:57
Rank: #20385 (+78)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:59:08
Rank: #20183 (+202)
25.2M → Finish
8:11 | 8:02/mi
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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:31
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time2:18:37
Pace10:34 /mi
📊Positive Split: 37.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4721:376:5721:37
6:57
-
10K
6.21 mi10:48:1645:067:1523:29
7:34
+0:37
15K
9.32 mi11:12:531:09:437:2924:37
7:55
+0:21
20K
12.43 mi11:38:051:34:557:3825:12
8:07
+0:12
Half
13.11 mi11:43:411:40:317:405:36
8:12
+0:05
25K
15.53 mi12:07:312:04:218:0023:50
9:50
+1:38
30K
18.64 mi12:50:332:47:238:5943:02
13:51
+4:01
20M
20.00 mi13:07:003:03:509:1116:27
12:06
-1:45
21M
21.00 mi13:16:203:13:109:129:20
9:20
-2:46
35K
21.75 mi13:23:193:20:099:126:59
9:20
0:00
23M
23.00 mi13:35:013:31:519:1311:42
9:20
0:00
24M
24.00 mi13:43:343:40:249:118:33
8:33
-0:47
40K
24.85 mi13:50:543:47:449:107:20
8:35
+0:02
25.2M
25.20 mi13:54:073:50:579:103:13
9:20
+0:45
Finish
26.22 mi14:02:183:59:089:088:11
8:02
-1:18

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:57 /mi

Average Pace

9:08 /mi

Slowest Pace

13:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

45:06

19% of race

Time at Steady Pace

1:50:43

46% of race

Time at Slower Pace

1:23:19

35% of race

Average Pace: 9:07 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:24:4721:376:5721:37
6:57
#7502
10K
6.21 mi10:48:1645:067:1523:29
7:34
#9968
15K
9.32 mi11:12:531:09:437:2924:37
7:55
#11818
20K
12.43 mi11:38:051:34:557:3825:12
8:07
#12813
Half
13.11 mi11:43:411:40:317:405:36
8:12
#13076
25K
15.53 mi12:07:312:04:218:0023:50
9:50
#15581
30K
18.64 mi12:50:332:47:238:5943:02
13:51
#20770
20M
20.00 mi13:07:003:03:509:1116:27
12:06
#21417
21M
21.00 mi13:16:203:13:109:129:20
9:20
#21115
35K
21.75 mi13:23:193:20:099:126:59
9:20
#21043
23M
23.00 mi13:35:013:31:519:1311:42
9:20
#20876
24M
24.00 mi13:43:343:40:249:118:33
8:33
#20654
40K
24.85 mi13:50:543:47:449:107:20
8:35
#20463
25.2M
25.20 mi13:54:073:50:579:103:13
9:20
#20385
Finish
26.22 mi14:02:183:59:089:088:11
8:02
#20183
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi75026677667715417(Top 54%)10559(Top 66%)10559(Top 187%)
10K6.21 mi3.10 mi9968-24668155-14788155-147812642(Top 45%)9443(Top 59%)9443(Top 167%)
15K9.32 mi3.11 mi11818-18509062-9079062-90715417(Top 54%)10559(Top 66%)10559(Top 187%)
20K12.43 mi3.11 mi12813-9959441-3799441-37915711(Top 55%)10628(Top 66%)10628(Top 188%)
Half13.11 mi0.68 mi13076-2639550-1099550-10917317(Top 61%)11344(Top 70%)11344(Top 201%)
25K15.53 mi2.42 mi15581-250510602-105210602-105222836(Top 80%)13665(Top 85%)13665(Top 242%)
30K18.64 mi3.11 mi20770-518912745-214312745-214327395(Top 96%)15611(Top 97%)15611(Top 277%)
20M20.00 mi1.36 mi21417-64713023-27813023-27825408(Top 89%)14638(Top 91%)14638(Top 259%)
21M21.00 mi1.00 mi21115+30212878+14512878+14515357(Top 54%)9930(Top 62%)9930(Top 176%)
35K21.75 mi0.75 mi21043+7212828+5012828+5019756(Top 70%)11842(Top 74%)11842(Top 210%)
23M23.00 mi1.25 mi20876+16712726+10212726+10217963(Top 63%)10942(Top 68%)10942(Top 194%)
24M24.00 mi1.00 mi20654+22212614+11212614+11214814(Top 52%)9507(Top 59%)9507(Top 169%)
40K24.85 mi0.85 mi20463+19112508+10612508+10613928(Top 49%)8977(Top 56%)8977(Top 159%)
25.2M25.20 mi0.35 mi20385+7812464+4412464+4413608(Top 48%)8778(Top 55%)8778(Top 156%)
Finish26.22 mi1.02 mi20183+20212358+10612358+10613074(Top 46%)8575(Top 53%)8575(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

15417

Males

10559

M18-39

10559

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

12642

Males

9443

M18-39

9443

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

15417

Males

10559

M18-39

10559

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15711

Males

10628

M18-39

10628

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

17317

Males

11344

M18-39

11344

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22836

Males

13665

M18-39

13665

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

27395

Males

15611

M18-39

15611

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

25408

Males

14638

M18-39

14638

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

15357

Males

9930

M18-39

9930

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19756

Males

11842

M18-39

11842

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

17963

Males

10942

M18-39

10942

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14814

Males

9507

M18-39

9507

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13928

Males

8977

M18-39

8977

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13608

Males

8778

M18-39

8778

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

13074

Males

8575

M18-39

8575

Passing Analysis

Category:
Athletes Passed
1378
Passed By
14057
Net Change
-12681
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7502
5K → 10K22467-2466#7502#9968
10K → 15K141863-1850#9968#11818
15K → 20K391034-995#11818#12813
20K → Half6269-263#12813#13076
Half → 25K92514-2505#13076#15581
25K → 30K25191-5189#15581#20770
30K → 20M18665-647#20770#21417
20M → 21M3053+302#21417#21115
21M → 35K10331+72#21115#21043
35K → 23M17710+167#21043#20876
23M → 24M2231+222#20876#20654
24M → 40K1943+191#20654#20463
40K → 25.2M813+78#20463#20385
25.2M → Finish2053+202#20385#20183
TOTALS137814057-12681
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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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