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BOSTON MARATHON 2024

Calvin Ma

Bib: 15738•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M55-59)
#0 / 1529
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:26
Rank: #13584
Start → 5K
7:52/mi
24:26 split
10K· 6.21 mi
50:33
Rank: #15355 (-1771)
5K → 10K
8:24/mi
26:07 split
15K· 9.32 mi
1:18:24
Rank: #16560 (-1205)
10K → 15K
8:58/mi
27:51 split
20K· 12.43 mi
1:46:45
Rank: #16923 (-363)
15K → 20K
9:07/mi
28:21 split
Half· 13.11 mi
1:52:39
Rank: #16896 (+27)
20K → Half
8:39/mi
5:54 split
25K· 15.53 mi
2:14:49
Rank: #16729 (+167)
Half → 25K
9:09/mi
22:10 split
30K· 18.64 mi
2:43:17
Rank: #16197 (+532)
25K → 30K
9:10/mi
28:28 split
20M
2:55:30
Rank: #15895 (+302)
30K → 20M
8:59/mi
12:13 split
21M
3:06:02
Rank: #15860 (+35)
20M → 21M
10:32/mi
10:32 split
35K· 21.75 mi
3:12:13
Rank: #15624 (+236)
21M → 35K
8:16/mi
6:11 split
23M
3:23:53
Rank: #15433 (+191)
35K → 23M
9:19/mi
11:40 split
24M
3:32:44
Rank: #15255 (+178)
23M → 24M
8:51/mi
8:51 split
40K· 24.85 mi
3:40:36
Rank: #15086 (+169)
24M → 40K
9:12/mi
7:52 split
25.2M
3:44:03
Rank: #14986 (+100)
40K → 25.2M
10:00/mi
3:27 split
Finish· 26.22 mi
3:53:01
Rank: #14899 (+87)
25.2M → Finish
8:48/mi
8:58 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:39
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:00:22
Pace9:11 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5924:267:5224:26
7:52
-
10K
6.21 mi11:23:0650:338:0826:07
8:24
+0:32
15K
9.32 mi11:50:571:18:248:2527:51
8:58
+0:34
20K
12.43 mi12:19:181:46:458:3528:21
9:07
+0:09
Half
13.11 mi12:25:121:52:398:365:54
8:39
-0:28
25K
15.53 mi12:47:222:14:498:4122:10
9:09
+0:30
30K
18.64 mi13:15:502:43:178:4628:28
9:10
+0:01
20M
20.00 mi13:28:032:55:308:4612:13
8:59
-0:11
21M
21.00 mi13:38:353:06:028:5210:32
10:32
+1:33
35K
21.75 mi13:44:463:12:138:506:11
8:16
-2:16
23M
23.00 mi13:56:263:23:538:5211:40
9:19
+1:03
24M
24.00 mi14:05:173:32:448:528:51
8:51
-0:28
40K
24.85 mi14:13:093:40:368:537:52
9:12
+0:21
25.2M
25.20 mi14:16:363:44:038:533:27
10:00
+0:48
Finish
26.22 mi14:25:343:53:018:548:58
8:48
-1:12

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

7:52 /mi

Average Pace

8:54 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:38

27% of race

Time at Steady Pace

2:24:44

62% of race

Time at Slower Pace

25:39

11% of race

Average Pace: 8:53 /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 mi10:56:5924:267:5224:26
7:52
#13584
10K
6.21 mi11:23:0650:338:0826:07
8:24
#15355
15K
9.32 mi11:50:571:18:248:2527:51
8:58
#16560
20K
12.43 mi12:19:181:46:458:3528:21
9:07
#16923
Half
13.11 mi12:25:121:52:398:365:54
8:39
#16896
25K
15.53 mi12:47:222:14:498:4122:10
9:09
#16729
30K
18.64 mi13:15:502:43:178:4628:28
9:10
#16197
20M
20.00 mi13:28:032:55:308:4612:13
8:59
#15895
21M
21.00 mi13:38:353:06:028:5210:32
10:32
#15860
35K
21.75 mi13:44:463:12:138:506:11
8:16
#15624
23M
23.00 mi13:56:263:23:538:5211:40
9:19
#15433
24M
24.00 mi14:05:173:32:448:528:51
8:51
#15255
40K
24.85 mi14:13:093:40:368:537:52
9:12
#15086
25.2M
25.20 mi14:16:363:44:038:533:27
10:00
#14986
Finish
26.22 mi14:25:343:53:018:548:58
8:48
#14899
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi135849504950418726(Top 73%)11592(Top 80%)11592(Top 758%)
10K6.21 mi3.10 mi15355-177110161-65710161-65716717(Top 65%)10713(Top 73%)10713(Top 701%)
15K9.32 mi3.11 mi16560-120510636-47510636-47518726(Top 73%)11592(Top 80%)11592(Top 758%)
20K12.43 mi3.11 mi16923-36310763-12710763-12717869(Top 70%)11195(Top 77%)11195(Top 732%)
Half13.11 mi0.68 mi16896+2710747+1610747+1616482(Top 65%)10512(Top 72%)10512(Top 688%)
25K15.53 mi2.42 mi16729+16710655+9210655+9216160(Top 63%)10310(Top 71%)10310(Top 674%)
30K18.64 mi3.11 mi16197+53210370+28510370+28514016(Top 55%)9122(Top 63%)9122(Top 597%)
20M20.00 mi1.36 mi15895+30210212+15810212+15812074(Top 47%)7991(Top 55%)7991(Top 523%)
21M21.00 mi1.00 mi15860+3510152+6010152+6014937(Top 58%)9114(Top 63%)9114(Top 596%)
35K21.75 mi0.75 mi15624+23610026+12610026+1269358(Top 37%)6450(Top 44%)6450(Top 422%)
23M23.00 mi1.25 mi15433+1919898+1289898+12812671(Top 50%)7898(Top 54%)7898(Top 517%)
24M24.00 mi1.00 mi15255+1789790+1089790+10811368(Top 44%)7257(Top 50%)7257(Top 475%)
40K24.85 mi0.85 mi15086+1699677+1139677+11311793(Top 46%)7336(Top 50%)7336(Top 480%)
25.2M25.20 mi0.35 mi14986+1009618+599618+5910952(Top 43%)6874(Top 47%)6874(Top 450%)
Finish26.22 mi1.02 mi14899+879544+749544+7413140(Top 51%)8072(Top 55%)8072(Top 528%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

18726

Males

11592

M55-59

11592

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

16717

Males

10713

M55-59

10713

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

18726

Males

11592

M55-59

11592

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

17869

Males

11195

M55-59

11195

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

16482

Males

10512

M55-59

10512

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16160

Males

10310

M55-59

10310

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

14016

Males

9122

M55-59

9122

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12074

Males

7991

M55-59

7991

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

14937

Males

9114

M55-59

9114

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9358

Males

6450

M55-59

6450

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

12671

Males

7898

M55-59

7898

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11368

Males

7257

M55-59

7257

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

11793

Males

7336

M55-59

7336

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

10952

Males

6874

M55-59

6874

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13140

Males

8072

M55-59

8072

Passing Analysis

Category:
Athletes Passed
2623
Passed By
3938
Net Change
-1315
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13584
5K → 10K251796-1771#13584#15355
10K → 15K341239-1205#15355#16560
15K → 20K156519-363#16560#16923
20K → Half5427+27#16923#16896
Half → 25K296129+167#16896#16729
25K → 30K56533+532#16729#16197
30K → 20M3053+302#16197#15895
20M → 21M12691+35#15895#15860
21M → 35K2371+236#15860#15624
35K → 23M22231+191#15624#15433
23M → 24M1835+178#15433#15255
24M → 40K19324+169#15255#15086
40K → 25.2M1099+100#15086#14986
25.2M → Finish11831+87#14986#14899
TOTALS26233938-1315
📊

Passing Visuals

Category:
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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