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BOSTON MARATHON 2024

John Sim

Bib: 9866•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 25%
Gender (Male)
#0 / 14578
Top 37%
Masters (Masters Men)
#0 / 9729
Top 25%
Division (M50-54)
#0 / 1935
Top 22%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:33
Rank: #11386
Start → 5K
23:33 | 7:35/mi
10K· 6.21 mi
46:47
Rank: #10710 (+676)
5K → 10K
23:14 | 7:29/mi
15K· 9.32 mi
1:09:40
Rank: #9942 (+768)
10K → 15K
22:53 | 7:22/mi
20K· 12.43 mi
1:33:07
Rank: #9572 (+370)
15K → 20K
23:27 | 7:33/mi
Half· 13.11 mi
1:38:09
Rank: #9483 (+89)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:56:06
Rank: #8881 (+602)
Half → 25K
17:57 | 7:24/mi
30K· 18.64 mi
2:19:49
Rank: #8147 (+734)
25K → 30K
23:43 | 7:38/mi
20M
2:30:12
Rank: #7826 (+321)
30K → 20M
10:23 | 7:38/mi
21M
2:38:20
Rank: #7499 (+327)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:43:54
Rank: #7326 (+173)
21M → 35K
5:34 | 7:26/mi
23M
2:53:46
Rank: #7080 (+246)
35K → 23M
9:52 | 7:53/mi
24M
3:01:20
Rank: #6866 (+214)
23M → 24M
7:34 | 7:34/mi
40K· 24.85 mi
3:07:56
Rank: #6670 (+196)
24M → 40K
6:36 | 7:43/mi
25.2M
3:10:48
Rank: #6579 (+91)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:18:12
Rank: #6444 (+135)
25.2M → Finish
7:24 | 7:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:09
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:40:03
Pace7:38 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1823:337:3523:33
7:35
-
10K
6.21 mi11:12:3246:477:3223:14
7:29
-0:06
15K
9.32 mi11:35:251:09:407:2822:53
7:22
-0:07
20K
12.43 mi11:58:521:33:077:3023:27
7:33
+0:11
Half
13.11 mi12:03:541:38:097:295:02
7:23
-0:10
25K
15.53 mi12:21:511:56:067:2817:57
7:24
+0:01
30K
18.64 mi12:45:342:19:497:3023:43
7:38
+0:14
20M
20.00 mi12:55:572:30:127:3110:23
7:38
0:00
21M
21.00 mi13:04:052:38:207:328:08
8:08
+0:30
35K
21.75 mi13:09:392:43:547:325:34
7:26
-0:42
23M
23.00 mi13:19:312:53:467:339:52
7:53
+0:27
24M
24.00 mi13:27:053:01:207:337:34
7:34
-0:19
40K
24.85 mi13:33:413:07:567:346:36
7:43
+0:09
25.2M
25.20 mi13:36:333:10:487:342:52
8:19
+0:36
Finish
26.22 mi13:43:573:18:127:347:24
7:16
-1:03

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

7:16 /mi

Average Pace

7:34 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:12

94% of race

Time at Steady Pace

11:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:49:1823:337:3523:33
7:35
#11386
10K
6.21 mi11:12:3246:477:3223:14
7:29
#10710
15K
9.32 mi11:35:251:09:407:2822:53
7:22
#9942
20K
12.43 mi11:58:521:33:077:3023:27
7:33
#9572
Half
13.11 mi12:03:541:38:097:295:02
7:23
#9483
25K
15.53 mi12:21:511:56:067:2817:57
7:24
#8881
30K
18.64 mi12:45:342:19:497:3023:43
7:38
#8147
20M
20.00 mi12:55:572:30:127:3110:23
7:38
#7826
21M
21.00 mi13:04:052:38:207:328:08
8:08
#7499
35K
21.75 mi13:09:392:43:547:325:34
7:26
#7326
23M
23.00 mi13:19:312:53:467:339:52
7:53
#7080
24M
24.00 mi13:27:053:01:207:337:34
7:34
#6866
40K
24.85 mi13:33:413:07:567:346:36
7:43
#6670
25.2M
25.20 mi13:36:333:10:487:342:52
8:19
#6579
Finish
26.22 mi13:43:573:18:127:347:24
7:16
#6444
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi11386857685768597(Top 34%)7067(Top 48%)7067(Top 365%)
10K6.21 mi3.10 mi10710+6768235+3418235+34110079(Top 39%)7912(Top 54%)7912(Top 409%)
15K9.32 mi3.11 mi9942+7687859+3767859+3768597(Top 34%)7067(Top 48%)7067(Top 365%)
20K12.43 mi3.11 mi9572+3707617+2427617+2428701(Top 34%)7003(Top 48%)7003(Top 362%)
Half13.11 mi0.68 mi9483+897568+497568+498140(Top 32%)6688(Top 46%)6688(Top 346%)
25K15.53 mi2.42 mi8881+6027198+3707198+3706423(Top 25%)5464(Top 37%)5464(Top 282%)
30K18.64 mi3.11 mi8147+7346678+5206678+5205778(Top 23%)4859(Top 33%)4859(Top 251%)
20M20.00 mi1.36 mi7826+3216444+2346444+2344936(Top 19%)4212(Top 29%)4212(Top 218%)
21M21.00 mi1.00 mi7499+3276209+2356209+2354668(Top 18%)3893(Top 27%)3893(Top 201%)
35K21.75 mi0.75 mi7326+1736076+1336076+1334795(Top 19%)3980(Top 27%)3980(Top 206%)
23M23.00 mi1.25 mi7080+2465872+2045872+2045177(Top 20%)4081(Top 28%)4081(Top 211%)
24M24.00 mi1.00 mi6866+2145697+1755697+1754400(Top 17%)3556(Top 24%)3556(Top 184%)
40K24.85 mi0.85 mi6670+1965527+1705527+1704430(Top 17%)3468(Top 24%)3468(Top 179%)
25.2M25.20 mi0.35 mi6579+915458+695458+693759(Top 15%)3018(Top 21%)3018(Top 156%)
Finish26.22 mi1.02 mi6444+1355337+1215337+1214318(Top 17%)3404(Top 23%)3404(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

8597

Males

7067

M50-54

7067

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

10079

Males

7912

M50-54

7912

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

8597

Males

7067

M50-54

7067

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

8701

Males

7003

M50-54

7003

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

8140

Males

6688

M50-54

6688

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6423

Males

5464

M50-54

5464

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

5778

Males

4859

M50-54

4859

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

4936

Males

4212

M50-54

4212

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4668

Males

3893

M50-54

3893

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

4795

Males

3980

M50-54

3980

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5177

Males

4081

M50-54

4081

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4400

Males

3556

M50-54

3556

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4430

Males

3468

M50-54

3468

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3759

Males

3018

M50-54

3018

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4318

Males

3404

M50-54

3404

Passing Analysis

Category:
Athletes Passed
5152*
Passed By
210
Net Change
+4942
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11386
5K → 10K72852+676#11386#10710
10K → 15K776*8+768#10710#9942
15K → 20K42353+370#9942#9572
20K → Half956+89#9572#9483
Half → 25K6075+602#9483#8881
25K → 30K7439+734#8881#8147
30K → 20M3232+321#8147#7826
20M → 21M3369+327#7826#7499
21M → 35K1796+173#7499#7326
35K → 23M26721+246#7326#7080
23M → 24M2228+214#7080#6866
24M → 40K20711+196#6866#6670
40K → 25.2M943+91#6670#6579
25.2M → Finish15217+135#6579#6444
TOTALS5152*210+4942

* 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