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BOSTON MARATHON 2024

Chi Kwan Angus Chew

Bib: 12086•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 41%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 43%
Division (M50-54)
#0 / 1935
Top 45%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:55
Rank: #12287
Start → 5K
23:55 | 7:42/mi
10K· 6.21 mi
48:06
Rank: #12414 (-127)
5K → 10K
24:11 | 7:47/mi
15K· 9.32 mi
1:12:17
Rank: #12165 (+249)
10K → 15K
24:11 | 7:47/mi
20K· 12.43 mi
1:36:36
Rank: #11697 (+468)
15K → 20K
24:19 | 7:50/mi
Half· 13.11 mi
1:41:51
Rank: #11623 (+74)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
2:01:28
Rank: #11420 (+203)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:28:09
Rank: #11270 (+150)
25K → 30K
26:41 | 8:35/mi
20M
2:40:15
Rank: #11273 (-3)
30K → 20M
12:06 | 8:54/mi
21M
2:50:06
Rank: #11335 (-62)
20M → 21M
9:51 | 9:51/mi
35K· 21.75 mi
2:55:57
Rank: #11097 (+238)
21M → 35K
5:51 | 7:49/mi
23M
3:06:33
Rank: #10869 (+228)
35K → 23M
10:36 | 8:28/mi
24M
3:15:01
Rank: #10748 (+121)
23M → 24M
8:28 | 8:28/mi
40K· 24.85 mi
3:21:59
Rank: #10529 (+219)
24M → 40K
6:58 | 8:09/mi
25.2M
3:25:26
Rank: #10529
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:33:45
Rank: #10457 (+72)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:51:54
Pace8:32 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0423:557:4223:55
7:42
-
10K
6.21 mi11:17:1548:067:4424:11
7:47
+0:05
15K
9.32 mi11:41:261:12:177:4524:11
7:47
0:00
20K
12.43 mi12:05:451:36:367:4624:19
7:50
+0:03
Half
13.11 mi12:11:001:41:517:465:15
7:42
-0:08
25K
15.53 mi12:30:372:01:287:4919:37
8:05
+0:23
30K
18.64 mi12:57:182:28:097:5726:41
8:35
+0:30
20M
20.00 mi13:09:242:40:158:0112:06
8:54
+0:19
21M
21.00 mi13:19:152:50:068:069:51
9:51
+0:57
35K
21.75 mi13:25:062:55:578:055:51
7:49
-2:02
23M
23.00 mi13:35:423:06:338:0710:36
8:28
+0:39
24M
24.00 mi13:44:103:15:018:088:28
8:28
0:00
40K
24.85 mi13:51:083:21:598:086:58
8:09
-0:19
25.2M
25.20 mi13:54:353:25:268:093:27
10:00
+1:51
Finish
26.22 mi14:02:543:33:458:108:19
8:10
-1:50

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

7:42 /mi

Average Pace

8:10 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:32

36% of race

Time at Steady Pace

1:24:08

39% of race

Time at Slower Pace

52:05

24% of race

Average Pace: 8:09 /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 mi10:53:0423:557:4223:55
7:42
#12287
10K
6.21 mi11:17:1548:067:4424:11
7:47
#12414
15K
9.32 mi11:41:261:12:177:4524:11
7:47
#12165
20K
12.43 mi12:05:451:36:367:4624:19
7:50
#11697
Half
13.11 mi12:11:001:41:517:465:15
7:42
#11623
25K
15.53 mi12:30:372:01:287:4919:37
8:05
#11420
30K
18.64 mi12:57:182:28:097:5726:41
8:35
#11270
20M
20.00 mi13:09:242:40:158:0112:06
8:54
#11273
21M
21.00 mi13:19:152:50:068:069:51
9:51
#11335
35K
21.75 mi13:25:062:55:578:055:51
7:49
#11097
23M
23.00 mi13:35:423:06:338:0710:36
8:28
#10869
24M
24.00 mi13:44:103:15:018:088:28
8:28
#10748
40K
24.85 mi13:51:083:21:598:086:58
8:09
#10529
25.2M
25.20 mi13:54:353:25:268:093:27
10:00
#10529
Finish
26.22 mi14:02:543:33:458:108:19
8:10
#10457
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi122878956895611791(Top 46%)8638(Top 59%)8638(Top 446%)
10K6.21 mi3.10 mi12414-1278978-228978-2212505(Top 49%)8994(Top 62%)8994(Top 465%)
15K9.32 mi3.11 mi12165+2498844+1348844+13411791(Top 46%)8638(Top 59%)8638(Top 446%)
20K12.43 mi3.11 mi11697+4688617+2278617+22710603(Top 41%)7953(Top 55%)7953(Top 411%)
Half13.11 mi0.68 mi11623+748582+358582+3510519(Top 41%)7939(Top 54%)7939(Top 410%)
25K15.53 mi2.42 mi11420+2038452+1308452+13010749(Top 42%)7883(Top 54%)7883(Top 407%)
30K18.64 mi3.11 mi11270+1508276+1768276+17611105(Top 43%)7837(Top 54%)7837(Top 405%)
20M20.00 mi1.36 mi11273-38222+548222+5411607(Top 45%)7759(Top 53%)7759(Top 401%)
21M21.00 mi1.00 mi11335-628201+218201+2112315(Top 48%)7864(Top 54%)7864(Top 406%)
35K21.75 mi0.75 mi11097+2388049+1528049+1526702(Top 26%)5088(Top 35%)5088(Top 263%)
23M23.00 mi1.25 mi10869+2287881+1687881+1688282(Top 32%)5746(Top 39%)5746(Top 297%)
24M24.00 mi1.00 mi10748+1217769+1127769+1129253(Top 36%)6170(Top 42%)6170(Top 319%)
40K24.85 mi0.85 mi10529+2197615+1547615+1546520(Top 26%)4622(Top 32%)4622(Top 239%)
25.2M25.20 mi0.35 mi105297595+207595+2010920(Top 43%)6842(Top 47%)6842(Top 354%)
Finish26.22 mi1.02 mi10457+727524+717524+719542(Top 37%)6225(Top 43%)6225(Top 322%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

11791

Males

8638

M50-54

8638

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

12505

Males

8994

M50-54

8994

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

11791

Males

8638

M50-54

8638

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10603

Males

7953

M50-54

7953

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

10519

Males

7939

M50-54

7939

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

10749

Males

7883

M50-54

7883

25K→30K

15.5 - 18.6 mi

Top 43%
×9stories
+181ft-148ft

Overall

11105

Males

7837

M50-54

7837

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11607

Males

7759

M50-54

7759

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12315

Males

7864

M50-54

7864

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6702

Males

5088

M50-54

5088

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8282

Males

5746

M50-54

5746

23M→24M

23.0 - 24.0 mi

Top 36%
×6stories
+12ft-82ft

Overall

9253

Males

6170

M50-54

6170

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6520

Males

4622

M50-54

4622

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

10920

Males

6842

M50-54

6842

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9542

Males

6225

M50-54

6225

Passing Analysis

Category:
Athletes Passed
3151*
Passed By
1321
Net Change
+1830
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12287
5K → 10K235362-127#12287#12414
10K → 15K355106+249#12414#12165
15K → 20K50133+468#12165#11697
20K → Half828+74#11697#11623
Half → 25K30198+203#11623#11420
25K → 30K359209+150#11420#11270
30K → 20M157160-3#11270#11273
20M → 21M124186-62#11273#11335
21M → 35K2424+238#11335#11097
35K → 23M25729+228#11097#10869
23M → 24M15736+121#10869#10748
24M → 40K226*7+219#10748#10529
40K → 25.2M40400#10529#10529
25.2M → Finish11543+72#10529#10457
TOTALS3151*1321+1830

* 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