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BOSTON MARATHON 2023

Chihling Chen

Bib: 6961•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 38%
Masters (Masters Men)
#0 / 9891
Top 24%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:14
Rank: #5007
Start → 5K
21:14 | 6:50/mi
10K· 6.21 mi
42:01
Rank: #4616 (+391)
5K → 10K
20:47 | 6:41/mi
15K· 9.32 mi
1:02:52
Rank: #4465 (+151)
10K → 15K
20:51 | 6:43/mi
20K· 12.43 mi
1:24:05
Rank: #4516 (-51)
15K → 20K
21:13 | 6:50/mi
Half· 13.11 mi
1:28:43
Rank: #4536 (-20)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:28
Rank: #4588 (-52)
Half → 25K
16:45 | 6:55/mi
30K· 18.64 mi
2:07:58
Rank: #4888 (-300)
25K → 30K
22:30 | 7:15/mi
20M
2:18:17
Rank: #5099 (-211)
30K → 20M
10:19 | 7:36/mi
21M
2:27:39
Rank: #5603 (-504)
20M → 21M
9:22 | 9:22/mi
35K· 21.75 mi
2:33:56
Rank: #5842 (-239)
21M → 35K
6:17 | 8:24/mi
23M
2:44:29
Rank: #6115 (-273)
35K → 23M
10:33 | 8:26/mi
24M
2:52:29
Rank: #6239 (-124)
23M → 24M
8:00 | 8:00/mi
40K· 24.85 mi
2:59:37
Rank: #6395 (-156)
24M → 40K
7:08 | 8:21/mi
25.2M
3:02:29
Rank: #6402 (-7)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:10:26
Rank: #6513 (-111)
25.2M → Finish
7:57 | 7:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:43
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:41:43
Pace7:46 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4721:146:5021:14
6:50
-
10K
6.21 mi10:45:3442:016:4620:47
6:41
-0:09
15K
9.32 mi11:06:251:02:526:4520:51
6:43
+0:02
20K
12.43 mi11:27:381:24:056:4621:13
6:50
+0:07
Half
13.11 mi11:32:161:28:436:464:38
6:47
-0:03
25K
15.53 mi11:49:011:45:286:4716:45
6:55
+0:08
30K
18.64 mi12:11:312:07:586:5222:30
7:15
+0:20
20M
20.00 mi12:21:502:18:176:5510:19
7:36
+0:21
21M
21.00 mi12:31:122:27:397:029:22
9:22
+1:46
35K
21.75 mi12:37:292:33:567:056:17
8:24
-0:58
23M
23.00 mi12:48:022:44:297:0910:33
8:26
+0:02
24M
24.00 mi12:56:022:52:297:118:00
8:00
-0:26
40K
24.85 mi13:03:102:59:377:147:08
8:21
+0:21
25.2M
25.20 mi13:06:023:02:297:142:52
8:19
-0:02
Finish
26.22 mi13:13:593:10:267:167:57
7:48
-0:31

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

6:41 /mi

Average Pace

7:16 /mi

Slowest Pace

9:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:28

55% of race

Time at Steady Pace

48:46

26% of race

Time at Slower Pace

36:12

19% of race

Average Pace: 7:16 /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 mi10:24:4721:146:5021:14
6:50
#5007
10K
6.21 mi10:45:3442:016:4620:47
6:41
#4616
15K
9.32 mi11:06:251:02:526:4520:51
6:43
#4465
20K
12.43 mi11:27:381:24:056:4621:13
6:50
#4516
Half
13.11 mi11:32:161:28:436:464:38
6:47
#4536
25K
15.53 mi11:49:011:45:286:4716:45
6:55
#4588
30K
18.64 mi12:11:312:07:586:5222:30
7:15
#4888
20M
20.00 mi12:21:502:18:176:5510:19
7:36
#5099
21M
21.00 mi12:31:122:27:397:029:22
9:22
#5603
35K
21.75 mi12:37:292:33:567:056:17
8:24
#5842
23M
23.00 mi12:48:022:44:297:0910:33
8:26
#6115
24M
24.00 mi12:56:022:52:297:118:00
8:00
#6239
40K
24.85 mi13:03:102:59:377:147:08
8:21
#6395
25.2M
25.20 mi13:06:023:02:297:142:52
8:19
#6402
Finish
26.22 mi13:13:593:10:267:167:57
7:48
#6513
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5007464946494250(Top 16%)3987(Top 26%)3987(Top 178%)
10K6.21 mi3.10 mi4616+3914310+3394310+3394247(Top 16%)3980(Top 26%)3980(Top 178%)
15K9.32 mi3.11 mi4465+1514175+1354175+1354250(Top 16%)3987(Top 26%)3987(Top 178%)
20K12.43 mi3.11 mi4516-514218-434218-434725(Top 18%)4397(Top 29%)4397(Top 196%)
Half13.11 mi0.68 mi4536-204235-174235-175240(Top 20%)4850(Top 32%)4850(Top 216%)
25K15.53 mi2.42 mi4588-524284-494284-495026(Top 19%)4651(Top 31%)4651(Top 208%)
30K18.64 mi3.11 mi4888-3004547-2634547-2635725(Top 22%)5167(Top 34%)5167(Top 231%)
20M20.00 mi1.36 mi5099-2114722-1754722-1757405(Top 28%)6210(Top 41%)6210(Top 277%)
21M21.00 mi1.00 mi5603-5045139-4175139-41715306(Top 57%)10049(Top 66%)10049(Top 448%)
35K21.75 mi0.75 mi5842-2395315-1765315-17614650(Top 55%)9701(Top 64%)9701(Top 433%)
23M23.00 mi1.25 mi6115-2735511-1965511-19612716(Top 48%)8774(Top 58%)8774(Top 392%)
24M24.00 mi1.00 mi6239-1245595-845595-8411189(Top 42%)7973(Top 53%)7973(Top 356%)
40K24.85 mi0.85 mi6395-1565694-995694-9912283(Top 46%)8439(Top 56%)8439(Top 377%)
25.2M25.20 mi0.35 mi6402-75698-45698-48291(Top 31%)6323(Top 42%)6323(Top 282%)
Finish26.22 mi1.02 mi6513-1115758-605758-6010647(Top 40%)7612(Top 50%)7612(Top 340%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4250

Males

3987

M40-44

3987

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4247

Males

3980

M40-44

3980

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4250

Males

3987

M40-44

3987

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4725

Males

4397

M40-44

4397

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5240

Males

4850

M40-44

4850

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5026

Males

4651

M40-44

4651

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5725

Males

5167

M40-44

5167

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7405

Males

6210

M40-44

6210

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15306

Males

10049

M40-44

10049

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14650

Males

9701

M40-44

9701

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12716

Males

8774

M40-44

8774

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11189

Males

7973

M40-44

7973

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12283

Males

8439

M40-44

8439

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8291

Males

6323

M40-44

6323

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

10647

Males

7612

M40-44

7612

Passing Analysis

Category:
Athletes Passed
1055
Passed By
2561
Net Change
-1506
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5007
5K → 10K45968+391#5007#4616
10K → 15K21766+151#4616#4465
15K → 20K86137-51#4465#4516
20K → Half1636-20#4516#4536
Half → 25K79131-52#4536#4588
25K → 30K64364-300#4588#4888
30K → 20M25236-211#4888#5099
20M → 21M2506-504#5099#5603
21M → 35K5244-239#5603#5842
35K → 23M16289-273#5842#6115
23M → 24M31155-124#6115#6239
24M → 40K15171-156#6239#6395
40K → 25.2M2027-7#6395#6402
25.2M → Finish20131-111#6402#6513
TOTALS10552561-1506
📊

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