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BOSTON MARATHON 2024

Chang Wei Huang

Bib: 12134 M TW

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

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:39/mi
26:54
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:47/mi
57:19
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:20/mi
1:29:25
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
11:49/mi
2:06:07
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
14:57/mi
2:16:19
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
13:47/mi
2:49:43
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
14:50/mi
3:35:47
↑ 181↓ 1480.2%
138 ft elev
20M
14:26/mi
3:55:24
↑ 64↓ 500.2%
148 ft elev
21M
17:01/mi
4:12:25
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
15:08/mi
4:23:44
↑ 17↓ 861.7%
156 ft elev
23M
15:20/mi
4:42:56
↑ 23↓ 630.6%
116 ft elev
24M
15:00/mi
4:57:56
↓ 821.3%
34 ft elev
40K· 24.85 mi
16:12/mi
5:11:47
↓ 200.3%
20 ft elev
25.2M
17:33/mi
5:17:50
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
11:34/mi
5:29:37
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:16:1910:24 /mi⚡ faster
2nd Half
3:13:1814:45 /mi+41.8%
Positive split — 41.8% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1326:548:3926:54
8:39
-
10K
6.21 mi11:51:3857:199:1330:25
9:47
+1:08
15K
9.32 mi12:23:441:29:259:3632:06
10:20
+0:33
20K
12.43 mi13:00:262:06:0710:0936:42
11:49
+1:29
Half
13.11 mi13:10:382:16:1910:2410:12
14:57
+3:08
25K
15.53 mi13:44:022:49:4310:5633:24
13:47
-1:10
30K
18.64 mi14:30:063:35:4711:3546:04
14:50
+1:03
20M
20.00 mi14:49:433:55:2411:4619:37
14:26
-0:24
21M
21.00 mi15:06:444:12:2512:0117:01
17:01
+2:35
35K
21.75 mi15:18:034:23:4412:0811:19
15:08
-1:53
23M
23.00 mi15:37:154:42:5612:1819:12
15:20
+0:12
24M
24.00 mi15:52:154:57:5612:2515:00
15:00
-0:20
40K
24.85 mi16:06:065:11:4712:3313:51
16:12
+1:12
25.2M
25.20 mi16:12:095:17:5012:376:03
17:33
+1:21
Finish
26.22 mi16:23:565:29:3712:3511:47
11:34
-5:59

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

8:39 /mi

Average Pace

12:35 /mi

Slowest Pace

17:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:17:54

42% of race

Time at Steady Pace

2:34:48

47% of race

Time at Slower Pace

36:55

11% of race

Average Pace: 12:34 /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 mi11:21:1326:548:3926:54
8:39
#18623
10K
6.21 mi11:51:3857:199:1330:25
9:47
#20709
15K
9.32 mi12:23:441:29:259:3632:06
10:20
#21476
20K
12.43 mi13:00:262:06:0710:0936:42
11:49
#22320
Half
13.11 mi13:10:382:16:1910:2410:12
14:57
#22785
25K
15.53 mi13:44:022:49:4310:5633:24
13:47
#23427
30K
18.64 mi14:30:063:35:4711:3546:04
14:50
#23842
20M
20.00 mi14:49:433:55:2411:4619:37
14:26
#23901
21M
21.00 mi15:06:444:12:2512:0117:01
17:01
#23991
35K
21.75 mi15:18:034:23:4412:0811:19
15:08
#24042
23M
23.00 mi15:37:154:42:5612:1819:12
15:20
#24134
24M
24.00 mi15:52:154:57:5612:2515:00
15:00
#24212
40K
24.85 mi16:06:065:11:4712:3313:51
16:12
#24301
25.2M
25.20 mi16:12:095:17:5012:376:03
17:33
#24330
Finish
26.22 mi16:23:565:29:3712:3511:47
11:34
#24283
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi186231146711467226051334713347
10K6.21 mi3.10 mi20709-208612442-97512442-975220671307113071
15K9.32 mi3.11 mi21476-76712805-36312805-363226051334713347
20K12.43 mi3.11 mi22320-84413201-39613201-396237701384013840
Half13.11 mi0.68 mi22785-46513443-24213443-242254991454914549
25K15.53 mi2.42 mi23427-64213700-25713700-257247811421914219
30K18.64 mi3.11 mi23842-41513861-16113861-161248111418314183
20M20.00 mi1.36 mi23901-5913859+213859+2243251389413894
21M21.00 mi1.00 mi23991-9013897-3813897-38250471425814258
35K21.75 mi0.75 mi24042-5113920-2313920-23249211417314173
23M23.00 mi1.25 mi24134-9213947-2713947-27248381412714127
24M24.00 mi1.00 mi24212-7813982-3513982-35248161407714077
40K24.85 mi0.85 mi24301-8914022-4014022-40250271421214212
25.2M25.20 mi0.35 mi24330-2914032-1014032-10248611410914109
Finish26.22 mi1.02 mi24283+4714001+3114001+31225421278412784

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

22605

Males

13347

M50-54

13347

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22067

Males

13071

M50-54

13071

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

22605

Males

13347

M50-54

13347

15K→20K

9.3 - 12.4 mi

Top 93%
×5story building
+106ft-86ft

Overall

23770

Males

13840

M50-54

13840

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

25499

Males

14549

M50-54

14549

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

24781

Males

14219

M50-54

14219

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

24811

Males

14183

M50-54

14183

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

24325

Males

13894

M50-54

13894

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

25047

Males

14258

M50-54

14258

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

24921

Males

14173

M50-54

14173

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

24838

Males

14127

M50-54

14127

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

24816

Males

14077

M50-54

14077

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

25027

Males

14212

M50-54

14212

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

24861

Males

14109

M50-54

14109

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

22542

Males

12784

M50-54

12784

Passing Analysis

Category:
Athletes Passed
319
Passed By
5979
Net Change
-5660
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18623
5K → 10K112097-2086#18623#20709
10K → 15K53820-767#20709#21476
15K → 20K25869-844#21476#22320
20K → Half3468-465#22320#22785
Half → 25K22664-642#22785#23427
25K → 30K29444-415#23427#23842
30K → 20M3594-59#23842#23901
20M → 21M20110-90#23901#23991
21M → 35K1465-51#23991#24042
35K → 23M24116-92#24042#24134
23M → 24M1290-78#24134#24212
24M → 40K695-89#24212#24301
40K → 25.2M433-29#24301#24330
25.2M → Finish6114+47#24330#24283
TOTALS3195979-5660

Passing Charts

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