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BOSTON MARATHON 2024

Jeffrey Tai

Bib: 5397•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 40%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 42%
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:41
Rank: #6913
Start → 5K
21:41 | 6:59/mi
10K· 6.21 mi
43:33
Rank: #6890 (+23)
5K → 10K
21:52 | 7:02/mi
15K· 9.32 mi
1:05:35
Rank: #6826 (+64)
10K → 15K
22:02 | 7:06/mi
20K· 12.43 mi
1:28:00
Rank: #6672 (+154)
15K → 20K
22:25 | 7:13/mi
Half· 13.11 mi
1:33:15
Rank: #6839 (-167)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
1:53:55
Rank: #7847 (-1008)
Half → 25K
20:40 | 8:31/mi
30K· 18.64 mi
2:21:57
Rank: #8965 (-1118)
25K → 30K
28:02 | 9:01/mi
20M
2:35:03
Rank: #9450 (-485)
30K → 20M
13:06 | 9:38/mi
21M
2:45:15
Rank: #9732 (-282)
20M → 21M
10:12 | 10:12/mi
35K· 21.75 mi
2:52:59
Rank: #10176 (-444)
21M → 35K
7:44 | 10:20/mi
23M
3:05:43
Rank: #10608 (-432)
35K → 23M
12:44 | 10:10/mi
24M
3:15:16
Rank: #10820 (-212)
23M → 24M
9:33 | 9:33/mi
40K· 24.85 mi
3:22:39
Rank: #10706 (+114)
24M → 40K
7:23 | 8:38/mi
25.2M
3:25:54
Rank: #10644 (+62)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:33:10
Rank: #10310 (+334)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:15
Pace7:07 /mi
2nd Half
Distance13.11 mi
Time1:59:55
Pace9:09 /mi
📊Positive Split: 28.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3221:416:5921:41
6:59
-
10K
6.21 mi10:47:2443:337:0121:52
7:02
+0:03
15K
9.32 mi11:09:261:05:357:0222:02
7:06
+0:04
20K
12.43 mi11:31:511:28:007:0522:25
7:13
+0:07
Half
13.11 mi11:37:061:33:157:075:15
7:42
+0:29
25K
15.53 mi11:57:461:53:557:2020:40
8:31
+0:49
30K
18.64 mi12:25:482:21:577:3728:02
9:01
+0:30
20M
20.00 mi12:38:542:35:037:4513:06
9:38
+0:37
21M
21.00 mi12:49:062:45:157:5210:12
10:12
+0:34
35K
21.75 mi12:56:502:52:597:577:44
10:20
+0:08
23M
23.00 mi13:09:343:05:438:0412:44
10:10
-0:10
24M
24.00 mi13:19:073:15:168:089:33
9:33
-0:37
40K
24.85 mi13:26:303:22:398:097:23
8:38
-0:55
25.2M
25.20 mi13:29:453:25:548:103:15
9:25
+0:47
Finish
26.22 mi13:37:013:33:108:087:16
7:08
-2:17

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

6:59 /mi

Average Pace

8:08 /mi

Slowest Pace

10:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:31

47% of race

Time at Steady Pace

56:05

26% of race

Time at Slower Pace

56:34

27% of race

Average Pace: 8:08 /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 mi10:25:3221:416:5921:41
6:59
#6913
10K
6.21 mi10:47:2443:337:0121:52
7:02
#6890
15K
9.32 mi11:09:261:05:357:0222:02
7:06
#6826
20K
12.43 mi11:31:511:28:007:0522:25
7:13
#6672
Half
13.11 mi11:37:061:33:157:075:15
7:42
#6839
25K
15.53 mi11:57:461:53:557:2020:40
8:31
#7847
30K
18.64 mi12:25:482:21:577:3728:02
9:01
#8965
20M
20.00 mi12:38:542:35:037:4513:06
9:38
#9450
21M
21.00 mi12:49:062:45:157:5210:12
10:12
#9732
35K
21.75 mi12:56:502:52:597:577:44
10:20
#10176
23M
23.00 mi13:09:343:05:438:0412:44
10:10
#10608
24M
24.00 mi13:19:073:15:168:089:33
9:33
#10820
40K
24.85 mi13:26:303:22:398:097:23
8:38
#10706
25.2M
25.20 mi13:29:453:25:548:103:15
9:25
#10644
Finish
26.22 mi13:37:013:33:108:087:16
7:08
#10310
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6913610861086755(Top 26%)5907(Top 41%)5907(Top 294%)
10K6.21 mi3.10 mi6890+236066+426066+426902(Top 27%)6055(Top 42%)6055(Top 301%)
15K9.32 mi3.11 mi6826+646007+596007+596755(Top 26%)5907(Top 41%)5907(Top 294%)
20K12.43 mi3.11 mi6672+1545878+1295878+1296490(Top 25%)5651(Top 39%)5651(Top 281%)
Half13.11 mi0.68 mi6839-1675989-1115989-11110514(Top 41%)7934(Top 54%)7934(Top 395%)
25K15.53 mi2.42 mi7847-10086600-6116600-61113174(Top 52%)8999(Top 62%)8999(Top 448%)
30K18.64 mi3.11 mi8965-11187149-5497149-54913332(Top 52%)8836(Top 61%)8836(Top 440%)
20M20.00 mi1.36 mi9450-4857334-1857334-18515098(Top 59%)9338(Top 64%)9338(Top 465%)
21M21.00 mi1.00 mi9732-2827419-857419-8513718(Top 54%)8521(Top 58%)8521(Top 424%)
35K21.75 mi0.75 mi10176-4447600-1817600-18118096(Top 71%)10664(Top 73%)10664(Top 531%)
23M23.00 mi1.25 mi10608-4327752-1527752-15216009(Top 63%)9571(Top 66%)9571(Top 476%)
24M24.00 mi1.00 mi10820-2127814-627814-6214655(Top 57%)8845(Top 61%)8845(Top 440%)
40K24.85 mi0.85 mi10706+1147699+1157699+1159038(Top 35%)5917(Top 41%)5917(Top 295%)
25.2M25.20 mi0.35 mi10644+627646+537646+538399(Top 33%)5542(Top 38%)5542(Top 276%)
Finish26.22 mi1.02 mi10310+3347453+1937453+1933723(Top 15%)3027(Top 21%)3027(Top 151%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

6755

Males

5907

M40-44

5907

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

6902

Males

6055

M40-44

6055

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

6755

Males

5907

M40-44

5907

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6490

Males

5651

M40-44

5651

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

10514

Males

7934

M40-44

7934

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

13174

Males

8999

M40-44

8999

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13332

Males

8836

M40-44

8836

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15098

Males

9338

M40-44

9338

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

13718

Males

8521

M40-44

8521

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

18096

Males

10664

M40-44

10664

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16009

Males

9571

M40-44

9571

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

14655

Males

8845

M40-44

8845

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9038

Males

5917

M40-44

5917

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8399

Males

5542

M40-44

5542

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

3723

Males

3027

M40-44

3027

Passing Analysis

Category:
Athletes Passed
1511*
Passed By
4906
Net Change
-3397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6913
5K → 10K193170+23#6913#6890
10K → 15K185121+64#6890#6826
15K → 20K23985+154#6826#6672
20K → Half1168-167#6672#6839
Half → 25K381046-1008#6839#7847
25K → 30K591177-1118#7847#8965
30K → 20M43528-485#8965#9450
20M → 21M59341-282#9450#9732
21M → 35K20462-444#9732#10176
35K → 23M56488-432#10176#10608
23M → 24M61273-212#10608#10820
24M → 40K147*33+114#10820#10706
40K → 25.2M7513+62#10706#10644
25.2M → Finish3351+334#10644#10310
TOTALS1511*4906-3397

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

📊

Passing Visuals

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