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BOSTON MARATHON 2024

Xiao Chen

Bib: 607•M

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 1%
Gender (Male)
#0 / 14578
Top 2%
Division (M18-39)
#0 / 4849
Top 4%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:58
Rank: #484
Start → 5K
17:58 | 5:47/mi
10K· 6.21 mi
36:01
Rank: #472 (+12)
5K → 10K
18:03 | 5:49/mi
15K· 9.32 mi
54:05
Rank: #449 (+23)
10K → 15K
18:04 | 5:49/mi
20K· 12.43 mi
1:12:28
Rank: #440 (+9)
15K → 20K
18:23 | 5:55/mi
Half· 13.11 mi
1:16:26
Rank: #433 (+7)
20K → Half
3:58 | 5:49/mi
25K· 15.53 mi
1:30:50
Rank: #411 (+22)
Half → 25K
14:24 | 5:56/mi
30K· 18.64 mi
1:49:44
Rank: #361 (+50)
25K → 30K
18:54 | 6:05/mi
20M
1:58:06
Rank: #338 (+23)
30K → 20M
8:22 | 6:09/mi
21M
2:04:27
Rank: #319 (+19)
20M → 21M
6:21 | 6:21/mi
35K· 21.75 mi
2:08:45
Rank: #308 (+11)
21M → 35K
4:18 | 5:45/mi
23M
2:16:28
Rank: #289 (+19)
35K → 23M
7:43 | 6:10/mi
24M
2:22:29
Rank: #282 (+7)
23M → 24M
6:01 | 6:01/mi
40K· 24.85 mi
2:27:43
Rank: #274 (+8)
24M → 40K
5:14 | 6:07/mi
25.2M
2:30:01
Rank: #270 (+4)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:35:48
Rank: #257 (+13)
25.2M → Finish
5:47 | 5:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:26
Pace5:50 /mi
2nd Half
Distance13.11 mi
Time1:19:22
Pace6:03 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:0717:585:4717:58
5:47
-
10K
6.21 mi10:36:1036:015:4818:03
5:49
+0:02
15K
9.32 mi10:54:1454:055:4818:04
5:49
0:00
20K
12.43 mi11:12:371:12:285:5018:23
5:55
+0:06
Half
13.11 mi11:16:351:16:265:503:58
5:49
-0:06
25K
15.53 mi11:30:591:30:505:5114:24
5:56
+0:07
30K
18.64 mi11:49:531:49:445:5318:54
6:05
+0:09
20M
20.00 mi11:58:151:58:065:548:22
6:09
+0:04
21M
21.00 mi12:04:362:04:275:566:21
6:21
+0:12
35K
21.75 mi12:08:542:08:455:554:18
5:45
-0:36
23M
23.00 mi12:16:372:16:285:567:43
6:10
+0:25
24M
24.00 mi12:22:382:22:295:566:01
6:01
-0:09
40K
24.85 mi12:27:522:27:435:575:14
6:07
+0:06
25.2M
25.20 mi12:30:102:30:015:572:18
6:40
+0:33
Finish
26.22 mi12:35:572:35:485:575:47
5:41
-0:59

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

5:41 /mi

Average Pace

5:57 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:09

94% of race

Time at Steady Pace

8:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:57 /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 mi10:18:0717:585:4717:58
5:47
#484
10K
6.21 mi10:36:1036:015:4818:03
5:49
#472
15K
9.32 mi10:54:1454:055:4818:04
5:49
#449
20K
12.43 mi11:12:371:12:285:5018:23
5:55
#440
Half
13.11 mi11:16:351:16:265:503:58
5:49
#433
25K
15.53 mi11:30:591:30:505:5114:24
5:56
#411
30K
18.64 mi11:49:531:49:445:5318:54
6:05
#361
20M
20.00 mi11:58:151:58:065:548:22
6:09
#338
21M
21.00 mi12:04:362:04:275:566:21
6:21
#319
35K
21.75 mi12:08:542:08:455:554:18
5:45
#308
23M
23.00 mi12:16:372:16:285:567:43
6:10
#289
24M
24.00 mi12:22:382:22:295:566:01
6:01
#282
40K
24.85 mi12:27:522:27:435:575:14
6:07
#274
25.2M
25.20 mi12:30:102:30:015:572:18
6:40
#270
Finish
26.22 mi12:35:572:35:485:575:47
5:41
#257
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi484462462399(Top 2%)377(Top 3%)377(Top 8%)
10K6.21 mi3.10 mi472+12450+12450+12482(Top 2%)459(Top 3%)459(Top 9%)
15K9.32 mi3.11 mi449+23427+23427+23399(Top 2%)377(Top 3%)377(Top 8%)
20K12.43 mi3.11 mi440+9418+9418+9425(Top 2%)403(Top 3%)403(Top 8%)
Half13.11 mi0.68 mi433+7411+7411+7387(Top 2%)365(Top 3%)365(Top 8%)
25K15.53 mi2.42 mi411+22389+22389+22363(Top 1%)341(Top 2%)341(Top 7%)
30K18.64 mi3.11 mi361+50339+50339+50319(Top 1%)295(Top 2%)295(Top 6%)
20M20.00 mi1.36 mi338+23316+23316+23343(Top 1%)316(Top 2%)316(Top 7%)
21M21.00 mi1.00 mi319+19297+19297+19233(Top 0.9%)213(Top 1%)213(Top 4%)
35K21.75 mi0.75 mi308+11286+11286+11173(Top 0.7%)154(Top 1%)154(Top 3%)
23M23.00 mi1.25 mi289+19266+20266+20287(Top 1%)265(Top 2%)265(Top 5%)
24M24.00 mi1.00 mi282+7259+7259+7278(Top 1%)253(Top 2%)253(Top 5%)
40K24.85 mi0.85 mi274+8251+8251+8270(Top 1%)246(Top 2%)246(Top 5%)
25.2M25.20 mi0.35 mi270+4247+4247+4256(Top 1%)234(Top 2%)234(Top 5%)
Finish26.22 mi1.02 mi257+13234+13234+13152(Top 0.6%)139(Top 1.0%)139(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

399

Males

377

M18-39

377

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

482

Males

459

M18-39

459

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

399

Males

377

M18-39

377

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

425

Males

403

M18-39

403

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

387

Males

365

M18-39

365

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

363

Males

341

M18-39

341

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

319

Males

295

M18-39

295

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

343

Males

316

M18-39

316

20M→21M

20.0 - 21.0 mi

Top 0.9%
×8stories
+106ft-24ft

Overall

233

Males

213

M18-39

213

21M→35K

21.0 - 21.8 mi

Top 0.7%
×7stories
+17ft-86ft

Overall

173

Males

154

M18-39

154

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

287

Males

265

M18-39

265

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

278

Males

253

M18-39

253

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

270

Males

246

M18-39

246

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

256

Males

234

M18-39

234

25.2M→Finish

25.2 - 26.2 mi

Top 0.6%
×2stories
+22ft-21ft

Overall

152

Males

139

M18-39

139

Passing Analysis

Category:
Athletes Passed
299
Passed By
72
Net Change
+227
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#484
5K → 10K2513+12#484#472
10K → 15K318+23#472#449
15K → 20K2819+9#449#440
20K → Half92+7#440#433
Half → 25K319+22#433#411
25K → 30K6111+50#411#361
30K → 20M230+23#361#338
20M → 21M212+19#338#319
21M → 35K121+11#319#308
35K → 23M201+19#308#289
23M → 24M103+7#289#282
24M → 40K102+8#282#274
40K → 25.2M51+4#274#270
25.2M → Finish130+13#270#257
TOTALS29972+227
📊

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