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BOSTON MARATHON 2024

David Chan

Bib: 24189•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:06
Rank: #24358
Start → 5K
10:39/mi
33:06 split
10K· 6.21 mi
1:08:41
Rank: #24620 (-262)
5K → 10K
11:27/mi
35:35 split
15K· 9.32 mi
1:43:37
Rank: #24432 (+188)
10K → 15K
11:15/mi
34:56 split
20K· 12.43 mi
2:18:18
Rank: #24064 (+368)
15K → 20K
11:10/mi
34:41 split
Half· 13.11 mi
2:25:45
Rank: #24045 (+19)
20K → Half
10:55/mi
7:27 split
25K· 15.53 mi
2:54:40
Rank: #23912 (+133)
Half → 25K
11:56/mi
28:55 split
30K· 18.64 mi
3:34:14
Rank: #23753 (+159)
25K → 30K
12:44/mi
39:34 split
20M
3:49:48
Rank: #23533 (+220)
30K → 20M
11:27/mi
15:34 split
21M
4:01:39
Rank: #23309 (+224)
20M → 21M
11:51/mi
11:51 split
35K· 21.75 mi
4:09:52
Rank: #23207 (+102)
21M → 35K
10:59/mi
8:13 split
23M
4:23:34
Rank: #23032 (+175)
35K → 23M
10:57/mi
13:42 split
24M
4:34:24
Rank: #22918 (+114)
23M → 24M
10:50/mi
10:50 split
40K· 24.85 mi
4:44:14
Rank: #22816 (+102)
24M → 40K
11:30/mi
9:50 split
25.2M
4:48:20
Rank: #22761 (+55)
40K → 25.2M
11:53/mi
4:06 split
Finish· 26.22 mi
4:59:14
Rank: #22719 (+42)
25.2M → Finish
10:42/mi
10:54 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:25:45
Pace11:07 /mi
2nd Half
Distance13.11 mi
Time2:33:29
Pace11:42 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4233:0610:3933:06
10:39
-
10K
6.21 mi12:24:171:08:4111:0335:35
11:27
+0:48
15K
9.32 mi12:59:131:43:3711:0734:56
11:15
-0:12
20K
12.43 mi13:33:542:18:1811:0834:41
11:10
-0:05
Half
13.11 mi13:41:212:25:4511:077:27
10:55
-0:15
25K
15.53 mi14:10:162:54:4011:1528:55
11:56
+1:01
30K
18.64 mi14:49:503:34:1411:3039:34
12:44
+0:48
20M
20.00 mi15:05:243:49:4811:2915:34
11:27
-1:17
21M
21.00 mi15:17:154:01:3911:3011:51
11:51
+0:24
35K
21.75 mi15:25:284:09:5211:298:13
10:59
-0:52
23M
23.00 mi15:39:104:23:3411:2813:42
10:57
-0:02
24M
24.00 mi15:50:004:34:2411:2610:50
10:50
-0:07
40K
24.85 mi15:59:504:44:1411:269:50
11:30
+0:40
25.2M
25.20 mi16:03:564:48:2011:274:06
11:53
+0:23
Finish
26.22 mi16:14:504:59:1411:2510:54
10:42
-1:11

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

10:39 /mi

Average Pace

11:25 /mi

Slowest Pace

12:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:48

72% of race

Time at Steady Pace

44:52

15% of race

Time at Slower Pace

39:34

13% of race

Average Pace: 11:25 /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 mi11:48:4233:0610:3933:06
10:39
#24358
10K
6.21 mi12:24:171:08:4111:0335:35
11:27
#24620
15K
9.32 mi12:59:131:43:3711:0734:56
11:15
#24432
20K
12.43 mi13:33:542:18:1811:0834:41
11:10
#24064
Half
13.11 mi13:41:212:25:4511:077:27
10:55
#24045
25K
15.53 mi14:10:162:54:4011:1528:55
11:56
#23912
30K
18.64 mi14:49:503:34:1411:3039:34
12:44
#23753
20M
20.00 mi15:05:243:49:4811:2915:34
11:27
#23533
21M
21.00 mi15:17:154:01:3911:3011:51
11:51
#23309
35K
21.75 mi15:25:284:09:5211:298:13
10:59
#23207
23M
23.00 mi15:39:104:23:3411:2813:42
10:57
#23032
24M
24.00 mi15:50:004:34:2411:2610:50
10:50
#22918
40K
24.85 mi15:59:504:44:1411:269:50
11:30
#22816
25.2M
25.20 mi16:03:564:48:2011:274:06
11:53
#22761
Finish
26.22 mi16:14:504:59:1411:2510:54
10:42
#22719
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi24358141531415323997(Top 94%)13983(Top 96%)13983(Top 630%)
10K6.21 mi3.10 mi24620-26214242-8914242-8924730(Top 97%)14279(Top 98%)14279(Top 644%)
15K9.32 mi3.11 mi24432+18814177+6514177+6523997(Top 94%)13983(Top 96%)13983(Top 630%)
20K12.43 mi3.11 mi24064+36814016+16114016+16122903(Top 90%)13458(Top 92%)13458(Top 607%)
Half13.11 mi0.68 mi24045+1914006+1014006+1023387(Top 92%)13627(Top 93%)13627(Top 614%)
25K15.53 mi2.42 mi23912+13313932+7413932+7423042(Top 90%)13437(Top 92%)13437(Top 606%)
30K18.64 mi3.11 mi23753+15913823+10913823+10922952(Top 90%)13274(Top 91%)13274(Top 598%)
20M20.00 mi1.36 mi23533+22013704+11913704+11920304(Top 79%)11883(Top 82%)11883(Top 536%)
21M21.00 mi1.00 mi23309+22413569+13513569+13518476(Top 72%)10874(Top 75%)10874(Top 490%)
35K21.75 mi0.75 mi23207+10213507+6213507+6219775(Top 77%)11511(Top 79%)11511(Top 519%)
23M23.00 mi1.25 mi23032+17513404+10313404+10318261(Top 71%)10698(Top 73%)10698(Top 482%)
24M24.00 mi1.00 mi22918+11413342+6213342+6218774(Top 73%)10895(Top 75%)10895(Top 491%)
40K24.85 mi0.85 mi22816+10213289+5313289+5319328(Top 76%)11119(Top 76%)11119(Top 501%)
25.2M25.20 mi0.35 mi22761+5513258+3113258+3117087(Top 67%)9970(Top 68%)9970(Top 450%)
Finish26.22 mi1.02 mi22719+4213234+2413234+2420556(Top 80%)11767(Top 81%)11767(Top 531%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

23997

Males

13983

M45-49

13983

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

24730

Males

14279

M45-49

14279

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

23997

Males

13983

M45-49

13983

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

22903

Males

13458

M45-49

13458

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

23387

Males

13627

M45-49

13627

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

23042

Males

13437

M45-49

13437

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

22952

Males

13274

M45-49

13274

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

20304

Males

11883

M45-49

11883

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

18476

Males

10874

M45-49

10874

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

19775

Males

11511

M45-49

11511

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

18261

Males

10698

M45-49

10698

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

18774

Males

10895

M45-49

10895

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

19328

Males

11119

M45-49

11119

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17087

Males

9970

M45-49

9970

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

20556

Males

11767

M45-49

11767

Passing Analysis

Category:
Athletes Passed
2108
Passed By
469
Net Change
+1639
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24358
5K → 10K68330-262#24358#24620
10K → 15K22436+188#24620#24432
15K → 20K3724+368#24432#24064
20K → Half3112+19#24064#24045
Half → 25K15320+133#24045#23912
25K → 30K19637+159#23912#23753
30K → 20M2200+220#23753#23533
20M → 21M2284+224#23533#23309
21M → 35K1031+102#23309#23207
35K → 23M1761+175#23207#23032
23M → 24M1173+114#23032#22918
24M → 40K1064+102#22918#22816
40K → 25.2M561+55#22816#22761
25.2M → Finish5816+42#22761#22719
TOTALS2108469+1639
📊

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