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BOSTON MARATHON 2024

Chunming Chen

Bib: 12312•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 7%
Gender (Male)
#0 / 14578
Top 12%
Masters (Masters Men)
#0 / 9729
Top 4%
Division (M50-54)
#0 / 1935
Top 1%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:27/mi
20:02
↑ 97↓ 3451.5%
10K· 6.21 mi
6:19/mi
39:40
↑ 79↓ 1380.4%
15K· 9.32 mi
6:25/mi
59:37
↑ 67↓ 78
20K· 12.43 mi
6:33/mi
1:19:57
↑ 106↓ 860.1%
Half· 13.11 mi
6:21/mi
1:24:17
↑ 19↓ 370.5%
25K· 15.53 mi
6:43/mi
1:40:35
↑ 66↓ 880.2%
30K· 18.64 mi
6:57/mi
2:02:12
↑ 181↓ 1480.2%
20M
7:13/mi
2:12:00
↑ 64↓ 500.2%
21M
7:14/mi
2:19:14
↑ 106↓ 241.6%
35K· 21.75 mi
6:22/mi
2:24:00
↑ 17↓ 861.7%
23M
6:55/mi
2:32:39
↑ 23↓ 630.6%
24M
6:28/mi
2:39:07
↓ 821.3%
40K· 24.85 mi
6:55/mi
2:45:02
↓ 200.3%
25.2M
7:44/mi
2:47:42
↑ 13↓ 160.2%
Finish· 26.22 mi
6:21/mi
2:54:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:17
Pace6:26 /mi
2nd Half
Distance13.11 mi
Time1:29:53
Pace6:51 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1620:026:2720:02
6:27
-
10K
6.21 mi11:07:5439:406:2319:38
6:19
-0:08
15K
9.32 mi11:27:5159:376:2419:57
6:25
+0:06
20K
12.43 mi11:48:111:19:576:2620:20
6:33
+0:08
Half
13.11 mi11:52:311:24:176:264:20
6:21
-0:12
25K
15.53 mi12:08:491:40:356:2816:18
6:43
+0:22
30K
18.64 mi12:30:262:02:126:3321:37
6:57
+0:14
20M
20.00 mi12:40:142:12:006:369:48
7:13
+0:16
21M
21.00 mi12:47:282:19:146:387:14
7:14
+0:01
35K
21.75 mi12:52:142:24:006:374:46
6:22
-0:52
23M
23.00 mi13:00:532:32:396:388:39
6:55
+0:33
24M
24.00 mi13:07:212:39:076:386:28
6:28
-0:27
40K
24.85 mi13:13:162:45:026:385:55
6:55
+0:27
25.2M
25.20 mi13:15:562:47:426:392:40
7:44
+0:49
Finish
26.22 mi13:22:242:54:106:396:28
6:21
-1:23

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

6:19 /mi

Average Pace

6:39 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

19:38

11% of race

Time at Steady Pace

1:38:39

57% of race

Time at Slower Pace

55:53

32% of race

Average Pace: 6:39 /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 mi10:48:1620:026:2720:02
6:27
#2999
10K
6.21 mi11:07:5439:406:2319:38
6:19
#2425
15K
9.32 mi11:27:5159:376:2419:57
6:25
#2367
20K
12.43 mi11:48:111:19:576:2620:20
6:33
#2327
Half
13.11 mi11:52:311:24:176:264:20
6:21
#2297
25K
15.53 mi12:08:491:40:356:2816:18
6:43
#2323
30K
18.64 mi12:30:262:02:126:3321:37
6:57
#2279
20M
20.00 mi12:40:142:12:006:369:48
7:13
#2322
21M
21.00 mi12:47:282:19:146:387:14
7:14
#2213
35K
21.75 mi12:52:142:24:006:374:46
6:22
#2127
23M
23.00 mi13:00:532:32:396:388:39
6:55
#2033
24M
24.00 mi13:07:212:39:076:386:28
6:28
#1916
40K
24.85 mi13:13:162:45:026:385:55
6:55
#1880
25.2M
25.20 mi13:15:562:47:426:392:40
7:44
#1867
Finish
26.22 mi13:22:242:54:106:396:28
6:21
#1770
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi2999286628662293(Top 9%)2212(Top 15%)2212(Top 114%)
10K6.21 mi3.10 mi2425+5742334+5322334+5322009(Top 8%)1945(Top 13%)1945(Top 101%)
15K9.32 mi3.11 mi2367+582282+522282+522293(Top 9%)2212(Top 15%)2212(Top 114%)
20K12.43 mi3.11 mi2327+402240+422240+422373(Top 9%)2277(Top 16%)2277(Top 118%)
Half13.11 mi0.68 mi2297+302213+272213+271875(Top 7%)1812(Top 12%)1812(Top 94%)
25K15.53 mi2.42 mi2323-262234-212234-212750(Top 11%)2599(Top 18%)2599(Top 134%)
30K18.64 mi3.11 mi2279+442180+542180+542637(Top 10%)2472(Top 17%)2472(Top 128%)
20M20.00 mi1.36 mi2322-432219-392219-393176(Top 12%)2887(Top 20%)2887(Top 149%)
21M21.00 mi1.00 mi2213+1092116+1032116+1031637(Top 6%)1532(Top 11%)1532(Top 79%)
35K21.75 mi0.75 mi2127+862036+802036+80976(Top 4%)926(Top 6%)926(Top 48%)
23M23.00 mi1.25 mi2033+941944+921944+921631(Top 6%)1514(Top 10%)1514(Top 78%)
24M24.00 mi1.00 mi1916+1171832+1121832+112911(Top 4%)856(Top 6%)856(Top 44%)
40K24.85 mi0.85 mi1880+361795+371795+371639(Top 6%)1495(Top 10%)1495(Top 77%)
25.2M25.20 mi0.35 mi1867+131782+131782+131969(Top 8%)1737(Top 12%)1737(Top 90%)
Finish26.22 mi1.02 mi1770+971690+921690+921008(Top 4%)929(Top 6%)929(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2293

Males

2212

M50-54

2212

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2009

Males

1945

M50-54

1945

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2293

Males

2212

M50-54

2212

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2373

Males

2277

M50-54

2277

20K→Half

12.4 - 13.1 mi

Top 7%
×2story building
+19ft-37ft

Overall

1875

Males

1812

M50-54

1812

Half→25K

13.1 - 15.5 mi

Top 11%
×4story building
+66ft-88ft

Overall

2750

Males

2599

M50-54

2599

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2637

Males

2472

M50-54

2472

30K→20M

18.6 - 20.0 mi

Top 12%
×5story building
+64ft-50ft

Overall

3176

Males

2887

M50-54

2887

20M→21M

20.0 - 21.0 mi

Top 6%
×8story building
+106ft-24ft

Overall

1637

Males

1532

M50-54

1532

21M→35K

21.0 - 21.8 mi

Top 4%
×7story building
+17ft-86ft

Overall

976

Males

926

M50-54

926

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1631

Males

1514

M50-54

1514

23M→24M

23.0 - 24.0 mi

Top 4%
×6story building
+12ft-82ft

Overall

911

Males

856

M50-54

856

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1639

Males

1495

M50-54

1495

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

1969

Males

1737

M50-54

1737

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2story building
+22ft-21ft

Overall

1008

Males

929

M50-54

929

Passing Analysis

Category:
Athletes Passed
1711
Passed By
482
Net Change
+1229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2999
5K → 10K5784+574#2999#2425
10K → 15K11658+58#2425#2367
15K → 20K11171+40#2367#2327
20K → Half322+30#2327#2297
Half → 25K83109-26#2297#2323
25K → 30K13591+44#2323#2279
30K → 20M5396-43#2279#2322
20M → 21M11910+109#2322#2213
21M → 35K871+86#2213#2127
35K → 23M10511+94#2127#2033
23M → 24M1170+117#2033#1916
24M → 40K5216+36#1916#1880
40K → 25.2M2310+13#1880#1867
25.2M → Finish1003+97#1867#1770
TOTALS1711482+1229
📊

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