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BOSTON MARATHON 2023

Ching-Wei Chen

Bib: 6667•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 39%
Masters (Masters Men)
#0 / 9891
Top 25%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:12/mi
22:22
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
44:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:10/mi
1:06:51
↑ 67↓ 78
20K· 12.43 mi
7:12/mi
1:29:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:34:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:51:44
↑ 66↓ 880.2%
30K· 18.64 mi
7:26/mi
2:14:49
↑ 181↓ 1480.2%
20M
7:25/mi
2:24:54
↑ 64↓ 500.2%
21M
7:43/mi
2:32:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:10/mi
2:37:59
↑ 17↓ 861.7%
23M
7:22/mi
2:47:12
↑ 23↓ 630.6%
24M
7:16/mi
2:54:28
↓ 821.3%
40K· 24.85 mi
7:36/mi
3:00:58
↓ 200.3%
25.2M
8:22/mi
3:03:51
↑ 13↓ 160.2%
Finish· 26.22 mi
7:23/mi
3:11:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:07
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:37:15
Pace7:25 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:4022:227:1222:22
7:12
-
10K
6.21 mi10:47:5344:357:1022:13
7:09
-0:03
15K
9.32 mi11:10:091:06:517:1022:16
7:10
+0:01
20K
12.43 mi11:32:321:29:147:1122:23
7:12
+0:02
Half
13.11 mi11:37:251:34:077:114:53
7:09
-0:03
25K
15.53 mi11:55:021:51:447:1217:37
7:16
+0:07
30K
18.64 mi12:18:072:14:497:1423:05
7:26
+0:10
20M
20.00 mi12:28:122:24:547:1510:05
7:25
-0:01
21M
21.00 mi12:35:552:32:377:167:43
7:43
+0:18
35K
21.75 mi12:41:172:37:597:165:22
7:10
-0:33
23M
23.00 mi12:50:302:47:127:169:13
7:22
+0:12
24M
24.00 mi12:57:462:54:287:167:16
7:16
-0:06
40K
24.85 mi13:04:163:00:587:176:30
7:36
+0:20
25.2M
25.20 mi13:07:093:03:517:182:53
8:22
+0:46
Finish
26.22 mi13:14:403:11:227:187:31
7:23
-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

7:09 /mi

Average Pace

7:18 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:29

98% of race

Time at Steady Pace

2:53

2% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:18 /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 mi10:25:4022:227:1222:22
7:12
#7480
10K
6.21 mi10:47:5344:357:1022:13
7:09
#7592
15K
9.32 mi11:10:091:06:517:1022:16
7:10
#7560
20K
12.43 mi11:32:321:29:147:1122:23
7:12
#7403
Half
13.11 mi11:37:251:34:077:114:53
7:09
#7406
25K
15.53 mi11:55:021:51:447:1217:37
7:16
#7323
30K
18.64 mi12:18:072:14:497:1423:05
7:26
#7176
20M
20.00 mi12:28:122:24:547:1510:05
7:25
#7079
21M
21.00 mi12:35:552:32:377:167:43
7:43
#6960
35K
21.75 mi12:41:172:37:597:165:22
7:10
#6925
23M
23.00 mi12:50:302:47:127:169:13
7:22
#6808
24M
24.00 mi12:57:462:54:287:167:16
7:16
#6746
40K
24.85 mi13:04:163:00:587:176:30
7:36
#6731
25.2M
25.20 mi13:07:093:03:517:182:53
8:22
#6732
Finish
26.22 mi13:14:403:11:227:187:31
7:23
#6724
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7480663266327565(Top 28%)6636(Top 44%)6636(Top 296%)
10K6.21 mi3.10 mi7592-1126701-696701-697765(Top 29%)6782(Top 45%)6782(Top 303%)
15K9.32 mi3.11 mi7560+326659+426659+427565(Top 28%)6636(Top 44%)6636(Top 296%)
20K12.43 mi3.11 mi7403+1576540+1196540+1197123(Top 27%)6301(Top 42%)6301(Top 281%)
Half13.11 mi0.68 mi7406-3654065407507(Top 28%)6566(Top 43%)6566(Top 293%)
25K15.53 mi2.42 mi7323+836473+676473+677048(Top 26%)6188(Top 41%)6188(Top 276%)
30K18.64 mi3.11 mi7176+1476350+1236350+1236765(Top 25%)5906(Top 39%)5906(Top 264%)
20M20.00 mi1.36 mi7079+976266+846266+846296(Top 24%)5512(Top 36%)5512(Top 246%)
21M21.00 mi1.00 mi6960+1196163+1036163+1035722(Top 21%)4994(Top 33%)4994(Top 223%)
35K21.75 mi0.75 mi6925+356130+336130+336349(Top 24%)5477(Top 36%)5477(Top 244%)
23M23.00 mi1.25 mi6808+1176022+1086022+1085637(Top 21%)4939(Top 33%)4939(Top 220%)
24M24.00 mi1.00 mi6746+625961+615961+616139(Top 23%)5186(Top 34%)5186(Top 231%)
40K24.85 mi0.85 mi6731+155927+345927+347308(Top 27%)5807(Top 38%)5807(Top 259%)
25.2M25.20 mi0.35 mi6732-15921+65921+68587(Top 32%)6488(Top 43%)6488(Top 290%)
Finish26.22 mi1.02 mi6724+85902+195902+197595(Top 29%)5924(Top 39%)5924(Top 264%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7565

Males

6636

M40-44

6636

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7765

Males

6782

M40-44

6782

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7565

Males

6636

M40-44

6636

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7123

Males

6301

M40-44

6301

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7507

Males

6566

M40-44

6566

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7048

Males

6188

M40-44

6188

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6765

Males

5906

M40-44

5906

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6296

Males

5512

M40-44

5512

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5722

Males

4994

M40-44

4994

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6349

Males

5477

M40-44

5477

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5637

Males

4939

M40-44

4939

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6139

Males

5186

M40-44

5186

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7308

Males

5807

M40-44

5807

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8587

Males

6488

M40-44

6488

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7595

Males

5924

M40-44

5924

Passing Analysis

Category:
Athletes Passed
1527
Passed By
771
Net Change
+756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7480
5K → 10K173285-112#7480#7592
10K → 15K144112+32#7592#7560
15K → 20K19942+157#7560#7403
20K → Half2124-3#7403#7406
Half → 25K12441+83#7406#7323
25K → 30K19649+147#7323#7176
30K → 20M11417+97#7176#7079
20M → 21M13213+119#7079#6960
21M → 35K5217+35#6960#6925
35K → 23M13013+117#6925#6808
23M → 24M8725+62#6808#6746
24M → 40K6853+15#6746#6731
40K → 25.2M2223-1#6731#6732
25.2M → Finish6557+8#6732#6724
TOTALS1527771+756
📊

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