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BOSTON MARATHON 2023

Charlie Peng

Bib: 31882•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
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
8:16/mi
25:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
49:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:14:06
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:38:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:44:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:03:29
↑ 66↓ 880.2%
30K· 18.64 mi
8:27/mi
2:29:43
↑ 181↓ 1480.2%
20M
8:48/mi
2:41:41
↑ 64↓ 500.2%
21M
9:07/mi
2:50:48
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:57:01
↑ 17↓ 861.7%
23M
8:37/mi
3:07:48
↑ 23↓ 630.6%
24M
8:20/mi
3:16:08
↓ 821.3%
40K· 24.85 mi
8:25/mi
3:23:20
↓ 200.3%
25.2M
9:17/mi
3:26:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:03/mi
3:34:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:07
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:50:37
Pace8:26 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5025:418:1625:41
8:16
-
10K
6.21 mi12:13:0549:568:0224:15
7:48
-0:28
15K
9.32 mi12:37:151:14:067:5724:10
7:47
-0:01
20K
12.43 mi13:01:531:38:447:5724:38
7:56
+0:09
Half
13.11 mi13:07:161:44:077:575:23
7:53
-0:03
25K
15.53 mi13:26:382:03:297:5719:22
7:59
+0:06
30K
18.64 mi13:52:522:29:438:0226:14
8:27
+0:28
20M
20.00 mi14:04:502:41:418:0511:58
8:48
+0:21
21M
21.00 mi14:13:572:50:488:089:07
9:07
+0:19
35K
21.75 mi14:20:102:57:018:086:13
8:19
-0:48
23M
23.00 mi14:30:573:07:488:1010:47
8:37
+0:18
24M
24.00 mi14:39:173:16:088:108:20
8:20
-0:17
40K
24.85 mi14:46:293:23:208:117:12
8:25
+0:05
25.2M
25.20 mi14:49:413:26:328:123:12
9:17
+0:52
Finish
26.22 mi14:57:533:34:448:128:12
8:03
-1:14

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

7:47 /mi

Average Pace

8:12 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:40

84% of race

Time at Steady Pace

31:52

15% of race

Time at Slower Pace

3:12

1% of race

Average Pace: 8:11 /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 mi11:48:5025:418:1625:41
8:16
#15911
10K
6.21 mi12:13:0549:568:0224:15
7:48
#14632
15K
9.32 mi12:37:151:14:067:5724:10
7:47
#13970
20K
12.43 mi13:01:531:38:447:5724:38
7:56
#13657
Half
13.11 mi13:07:161:44:077:575:23
7:53
#13644
25K
15.53 mi13:26:382:03:297:5719:22
7:59
#13459
30K
18.64 mi13:52:522:29:438:0226:14
8:27
#13524
20M
20.00 mi14:04:502:41:418:0511:58
8:48
#13694
21M
21.00 mi14:13:572:50:488:089:07
9:07
#13717
35K
21.75 mi14:20:102:57:018:086:13
8:19
#13712
23M
23.00 mi14:30:573:07:488:1010:47
8:37
#13707
24M
24.00 mi14:39:173:16:088:108:20
8:20
#13672
40K
24.85 mi14:46:293:23:208:117:12
8:25
#13615
25.2M
25.20 mi14:49:413:26:328:123:12
9:17
#13615
Finish
26.22 mi14:57:533:34:448:128:12
8:03
#13560
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi15911106661066612524(Top 47%)9309(Top 61%)9309(Top 413%)
10K6.21 mi3.10 mi14632+127910185+48110185+48113151(Top 49%)9620(Top 63%)9620(Top 427%)
15K9.32 mi3.11 mi13970+6629912+2739912+27312524(Top 47%)9309(Top 61%)9309(Top 413%)
20K12.43 mi3.11 mi13657+3139755+1579755+15712856(Top 48%)9371(Top 62%)9371(Top 416%)
Half13.11 mi0.68 mi13644+139751+49751+413470(Top 51%)9675(Top 64%)9675(Top 430%)
25K15.53 mi2.42 mi13459+1859663+889663+8812636(Top 47%)9186(Top 61%)9186(Top 408%)
30K18.64 mi3.11 mi13524-659655+89655+813943(Top 52%)9624(Top 63%)9624(Top 427%)
20M20.00 mi1.36 mi13694-1709701-469701-4615435(Top 58%)10176(Top 67%)10176(Top 452%)
21M21.00 mi1.00 mi13717-239699+29699+214040(Top 53%)9512(Top 63%)9512(Top 422%)
35K21.75 mi0.75 mi13712+59680+199680+1914124(Top 53%)9479(Top 62%)9479(Top 421%)
23M23.00 mi1.25 mi13707+59645+359645+3513844(Top 52%)9296(Top 61%)9296(Top 413%)
24M24.00 mi1.00 mi13672+359609+369609+3613417(Top 50%)9059(Top 60%)9059(Top 402%)
40K24.85 mi0.85 mi13615+579567+429567+4212822(Top 48%)8697(Top 57%)8697(Top 386%)
25.2M25.20 mi0.35 mi136159560+79560+714025(Top 53%)9243(Top 61%)9243(Top 410%)
Finish26.22 mi1.02 mi13560+559520+409520+4012428(Top 47%)8496(Top 56%)8496(Top 377%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12524

Males

9309

M45-49

9309

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13151

Males

9620

M45-49

9620

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12524

Males

9309

M45-49

9309

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12856

Males

9371

M45-49

9371

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13470

Males

9675

M45-49

9675

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12636

Males

9186

M45-49

9186

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13943

Males

9624

M45-49

9624

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15435

Males

10176

M45-49

10176

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14040

Males

9512

M45-49

9512

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14124

Males

9479

M45-49

9479

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13844

Males

9296

M45-49

9296

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13417

Males

9059

M45-49

9059

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12822

Males

8697

M45-49

8697

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14025

Males

9243

M45-49

9243

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12428

Males

8496

M45-49

8496

Passing Analysis

Category:
Athletes Passed
3369
Passed By
1018
Net Change
+2351
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15911
5K → 10K131132+1279#15911#14632
10K → 15K68826+662#14632#13970
15K → 20K35340+313#13970#13657
20K → Half3219+13#13657#13644
Half → 25K22641+185#13644#13459
25K → 30K171236-65#13459#13524
30K → 20M49219-170#13524#13694
20M → 21M81104-23#13694#13717
21M → 35K5651+5#13717#13712
35K → 23M9590+5#13712#13707
23M → 24M8146+35#13707#13672
24M → 40K10144+57#13672#13615
40K → 25.2M29290#13615#13615
25.2M → Finish9641+55#13615#13560
TOTALS33691018+2351
📊

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