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BOSTON MARATHON 2023

Yuan Chen

Bib: 8429•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M45-49)
#0 / 2252
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:49
Rank: #1741
Start → 5K
19:49 | 6:23/mi
10K· 6.21 mi
40:23
Rank: #2498 (-757)
5K → 10K
20:34 | 6:37/mi
15K· 9.32 mi
1:01:31
Rank: #3201 (-703)
10K → 15K
21:08 | 6:48/mi
20K· 12.43 mi
1:22:39
Rank: #3456 (-255)
15K → 20K
21:08 | 6:48/mi
Half· 13.11 mi
1:26:54
Rank: #3311 (+145)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:43:40
Rank: #3546 (-235)
Half → 25K
16:46 | 6:55/mi
30K· 18.64 mi
2:06:21
Rank: #4104 (-558)
25K → 30K
22:41 | 7:18/mi
20M
2:16:12
Rank: #4247 (-143)
30K → 20M
9:51 | 7:15/mi
21M
2:23:54
Rank: #4343 (-96)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:28:59
Rank: #4318 (+25)
21M → 35K
5:05 | 6:48/mi
23M
2:37:59
Rank: #4350 (-32)
35K → 23M
9:00 | 7:11/mi
24M
2:44:41
Rank: #4288 (+62)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:50:27
Rank: #4181 (+107)
24M → 40K
5:46 | 6:45/mi
25.2M
2:52:56
Rank: #4150 (+31)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:59:30
Rank: #4035 (+115)
25.2M → Finish
6:34 | 6:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:54
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:32:36
Pace7:04 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:44:5019:496:2319:49
6:23
-
10K
6.21 mi11:05:2440:236:3020:34
6:37
+0:14
15K
9.32 mi11:26:321:01:316:3621:08
6:48
+0:11
20K
12.43 mi11:47:401:22:396:3921:08
6:48
0:00
Half
13.11 mi11:51:551:26:546:384:15
6:14
-0:34
25K
15.53 mi12:08:411:43:406:4016:46
6:55
+0:41
30K
18.64 mi12:31:222:06:216:4722:41
7:18
+0:23
20M
20.00 mi12:41:132:16:126:499:51
7:15
-0:03
21M
21.00 mi12:48:552:23:546:517:42
7:42
+0:27
35K
21.75 mi12:54:002:28:596:515:05
6:48
-0:54
23M
23.00 mi13:03:002:37:596:529:00
7:11
+0:23
24M
24.00 mi13:09:422:44:416:526:42
6:42
-0:29
40K
24.85 mi13:15:282:50:276:515:46
6:45
+0:03
25.2M
25.20 mi13:17:572:52:566:522:29
7:12
+0:27
Finish
26.22 mi13:24:312:59:306:516:34
6:27
-0:45

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

6:14 /mi

Average Pace

6:51 /mi

Slowest Pace

7:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:38

17% of race

Time at Steady Pace

1:37:09

54% of race

Time at Slower Pace

51:43

29% of race

Average Pace: 6:51 /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 mi10:44:5019:496:2319:49
6:23
#1741
10K
6.21 mi11:05:2440:236:3020:34
6:37
#2498
15K
9.32 mi11:26:321:01:316:3621:08
6:48
#3201
20K
12.43 mi11:47:401:22:396:3921:08
6:48
#3456
Half
13.11 mi11:51:551:26:546:384:15
6:14
#3311
25K
15.53 mi12:08:411:43:406:4016:46
6:55
#3546
30K
18.64 mi12:31:222:06:216:4722:41
7:18
#4104
20M
20.00 mi12:41:132:16:126:499:51
7:15
#4247
21M
21.00 mi12:48:552:23:546:517:42
7:42
#4343
35K
21.75 mi12:54:002:28:596:515:05
6:48
#4318
23M
23.00 mi13:03:002:37:596:529:00
7:11
#4350
24M
24.00 mi13:09:422:44:416:526:42
6:42
#4288
40K
24.85 mi13:15:282:50:276:515:46
6:45
#4181
25.2M
25.20 mi13:17:572:52:566:522:29
7:12
#4150
Finish
26.22 mi13:24:312:59:306:516:34
6:27
#4035
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1741165916595179(Top 19%)4787(Top 32%)4787(Top 213%)
10K6.21 mi3.10 mi2498-7572381-7222381-7223656(Top 14%)3452(Top 23%)3452(Top 153%)
15K9.32 mi3.11 mi3201-7033047-6663047-6665179(Top 19%)4787(Top 32%)4787(Top 213%)
20K12.43 mi3.11 mi3456-2553275-2283275-2284480(Top 17%)4176(Top 28%)4176(Top 185%)
Half13.11 mi0.68 mi3311+1453149+1263149+1261548(Top 6%)1483(Top 10%)1483(Top 66%)
25K15.53 mi2.42 mi3546-2353360-2113360-2115075(Top 19%)4685(Top 31%)4685(Top 208%)
30K18.64 mi3.11 mi4104-5583857-4973857-4976043(Top 23%)5392(Top 36%)5392(Top 239%)
20M20.00 mi1.36 mi4247-1433983-1263983-1265400(Top 20%)4840(Top 32%)4840(Top 215%)
21M21.00 mi1.00 mi4343-964057-744057-745663(Top 21%)4938(Top 33%)4938(Top 219%)
35K21.75 mi0.75 mi4318+254034+234034+234226(Top 16%)3862(Top 25%)3862(Top 171%)
23M23.00 mi1.25 mi4350-324065-314065-314760(Top 18%)4276(Top 28%)4276(Top 190%)
24M24.00 mi1.00 mi4288+624013+524013+523146(Top 12%)2912(Top 19%)2912(Top 129%)
40K24.85 mi0.85 mi4181+1073911+1023911+1022604(Top 10%)2403(Top 16%)2403(Top 107%)
25.2M25.20 mi0.35 mi4150+313883+283883+282622(Top 10%)2410(Top 16%)2410(Top 107%)
Finish26.22 mi1.02 mi4035+1153775+1083775+1082262(Top 8%)2090(Top 14%)2090(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5179

Males

4787

M45-49

4787

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3656

Males

3452

M45-49

3452

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5179

Males

4787

M45-49

4787

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4480

Males

4176

M45-49

4176

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1548

Males

1483

M45-49

1483

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5075

Males

4685

M45-49

4685

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6043

Males

5392

M45-49

5392

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5400

Males

4840

M45-49

4840

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5663

Males

4938

M45-49

4938

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4226

Males

3862

M45-49

3862

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4760

Males

4276

M45-49

4276

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3146

Males

2912

M45-49

2912

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2604

Males

2403

M45-49

2403

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2622

Males

2410

M45-49

2410

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2262

Males

2090

M45-49

2090

Passing Analysis

Category:
Athletes Passed
757
Passed By
3051
Net Change
-2294
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1741
5K → 10K4761-757#1741#2498
10K → 15K3706-703#2498#3201
15K → 20K29284-255#3201#3456
20K → Half1450+145#3456#3311
Half → 25K27262-235#3311#3546
25K → 30K20578-558#3546#4104
30K → 20M26169-143#4104#4247
20M → 21M39135-96#4247#4343
21M → 35K5227+25#4343#4318
35K → 23M6395-32#4318#4350
23M → 24M8321+62#4350#4288
24M → 40K1125+107#4288#4181
40K → 25.2M343+31#4181#4150
25.2M → Finish1205+115#4150#4035
TOTALS7573051-2294
📊

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