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BOSTON MARATHON 2023

Danny Zeng

Bib: 31877•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 (M55-59)
#0 / 1422
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
9:59/mi
31:02
↑ 97↓ 3451.5%
10K· 6.21 mi
9:43/mi
1:01:13
↑ 79↓ 1380.4%
15K· 9.32 mi
9:40/mi
1:31:14
↑ 67↓ 78
20K· 12.43 mi
9:49/mi
2:01:45
↑ 106↓ 860.1%
Half· 13.11 mi
9:30/mi
2:08:14
↑ 19↓ 370.5%
25K· 15.53 mi
9:52/mi
2:32:10
↑ 66↓ 880.2%
30K· 18.64 mi
12:12/mi
3:10:05
↑ 181↓ 1480.2%
20M
12:22/mi
3:26:54
↑ 64↓ 500.2%
21M
13:07/mi
3:40:01
↑ 106↓ 241.6%
35K· 21.75 mi
14:52/mi
3:51:08
↑ 17↓ 861.7%
23M
12:14/mi
4:06:27
↑ 23↓ 630.6%
24M
12:38/mi
4:19:05
↓ 821.3%
40K· 24.85 mi
14:41/mi
4:31:38
↓ 200.3%
25.2M
13:32/mi
4:36:18
↑ 13↓ 160.2%
Finish· 26.22 mi
11:41/mi
4:48:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:14
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:39:58
Pace12:12 /mi
📊Positive Split: 24.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:4731:029:5931:02
9:59
-
10K
6.21 mi12:25:581:01:139:5130:11
9:43
-0:16
15K
9.32 mi12:55:591:31:149:4730:01
9:40
-0:03
20K
12.43 mi13:26:302:01:459:4830:31
9:49
+0:09
Half
13.11 mi13:32:592:08:149:476:29
9:30
-0:19
25K
15.53 mi13:56:552:32:109:4823:56
9:52
+0:22
30K
18.64 mi14:34:503:10:0510:1237:55
12:12
+2:20
20M
20.00 mi14:51:393:26:5410:2116:49
12:22
+0:10
21M
21.00 mi15:04:463:40:0110:2913:07
13:07
+0:45
35K
21.75 mi15:15:533:51:0810:3811:07
14:52
+1:45
23M
23.00 mi15:31:124:06:2710:4315:19
12:14
-2:38
24M
24.00 mi15:43:504:19:0510:4812:38
12:38
+0:24
40K
24.85 mi15:56:234:31:3810:5612:33
14:41
+2:03
25.2M
25.20 mi16:01:034:36:1810:584:40
13:32
-1:09
Finish
26.22 mi16:12:574:48:1211:0011:54
11:41
-1:51

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

9:30 /mi

Average Pace

11:00 /mi

Slowest Pace

14:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:10

53% of race

Time at Steady Pace

1:34:35

33% of race

Time at Slower Pace

41:27

14% of race

Average Pace: 10:59 /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 mi11:55:4731:029:5931:02
9:59
#23403
10K
6.21 mi12:25:581:01:139:5130:11
9:43
#23283
15K
9.32 mi12:55:591:31:149:4730:01
9:40
#23120
20K
12.43 mi13:26:302:01:459:4830:31
9:49
#22932
Half
13.11 mi13:32:592:08:149:476:29
9:30
#22877
25K
15.53 mi13:56:552:32:109:4823:56
9:52
#22702
30K
18.64 mi14:34:503:10:0510:1237:55
12:12
#23237
20M
20.00 mi14:51:393:26:5410:2116:49
12:22
#23374
21M
21.00 mi15:04:463:40:0110:2913:07
13:07
#23449
35K
21.75 mi15:15:533:51:0810:3811:07
14:52
#23687
23M
23.00 mi15:31:124:06:2710:4315:19
12:14
#23759
24M
24.00 mi15:43:504:19:0510:4812:38
12:38
#23849
40K
24.85 mi15:56:234:31:3810:5612:33
14:41
#24011
25.2M
25.20 mi16:01:034:36:1810:584:40
13:32
#24028
Finish
26.22 mi16:12:574:48:1211:0011:54
11:41
#24059
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23403137781377822699(Top 85%)13495(Top 89%)13495(Top 949%)
10K6.21 mi3.10 mi23283+12013743+3513743+3523082(Top 87%)13684(Top 90%)13684(Top 962%)
15K9.32 mi3.11 mi23120+16313684+5913684+5922699(Top 85%)13495(Top 89%)13495(Top 949%)
20K12.43 mi3.11 mi22932+18813601+8313601+8322459(Top 84%)13379(Top 88%)13379(Top 941%)
Half13.11 mi0.68 mi22877+5513577+2413577+2422113(Top 83%)13253(Top 87%)13253(Top 932%)
25K15.53 mi2.42 mi22702+17513471+10613471+10621908(Top 82%)13100(Top 86%)13100(Top 921%)
30K18.64 mi3.11 mi23237-53513713-24213713-24224713(Top 93%)14287(Top 94%)14287(Top 1005%)
20M20.00 mi1.36 mi23374-13713762-4913762-4924605(Top 92%)14190(Top 94%)14190(Top 998%)
21M21.00 mi1.00 mi23449-7513791-2913791-2924215(Top 91%)13986(Top 92%)13986(Top 984%)
35K21.75 mi0.75 mi23687-23813898-10713898-10726383(Top 99%)15038(Top 99%)15038(Top 1058%)
23M23.00 mi1.25 mi23759-7213916-1813916-1824277(Top 91%)13979(Top 92%)13979(Top 983%)
24M24.00 mi1.00 mi23849-9013950-3413950-3425188(Top 95%)14388(Top 95%)14388(Top 1012%)
40K24.85 mi0.85 mi24011-16214010-6014010-6026018(Top 98%)14814(Top 98%)14814(Top 1042%)
25.2M25.20 mi0.35 mi24028-1714016-614016-624542(Top 92%)14061(Top 93%)14061(Top 989%)
Finish26.22 mi1.02 mi24059-3114025-914025-924908(Top 94%)14270(Top 94%)14270(Top 1004%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22699

Males

13495

M55-59

13495

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23082

Males

13684

M55-59

13684

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22699

Males

13495

M55-59

13495

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

22459

Males

13379

M55-59

13379

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22113

Males

13253

M55-59

13253

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

21908

Males

13100

M55-59

13100

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24713

Males

14287

M55-59

14287

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24605

Males

14190

M55-59

14190

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24215

Males

13986

M55-59

13986

21M→35K

21.0 - 21.8 mi

Top 99%
×7story building
+17ft-86ft

Overall

26383

Males

15038

M55-59

15038

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24277

Males

13979

M55-59

13979

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25188

Males

14388

M55-59

14388

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26018

Males

14814

M55-59

14814

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24542

Males

14061

M55-59

14061

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

24908

Males

14270

M55-59

14270

Passing Analysis

Category:
Athletes Passed
1122
Passed By
1778
Net Change
-656
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23403
5K → 10K275155+120#23403#23283
10K → 15K24077+163#23283#23120
15K → 20K23648+188#23120#22932
20K → Half605+55#22932#22877
Half → 25K19520+175#22877#22702
25K → 30K21556-535#22702#23237
30K → 20M16153-137#23237#23374
20M → 21M1994-75#23374#23449
21M → 35K2240-238#23449#23687
35K → 23M2597-72#23687#23759
23M → 24M13103-90#23759#23849
24M → 40K2164-162#23849#24011
40K → 25.2M320-17#24011#24028
25.2M → Finish1546-31#24028#24059
TOTALS11221778-656
📊

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