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BOSTON MARATHON 2023

David Robinson

Bib: 26444•M

NJ

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
10:01/mi
31:06
↑ 97↓ 3451.5%
10K· 6.21 mi
9:14/mi
59:46
↑ 79↓ 1380.4%
15K· 9.32 mi
9:13/mi
1:28:23
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:57:53
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:04:14
↑ 19↓ 370.5%
25K· 15.53 mi
9:32/mi
2:27:20
↑ 66↓ 880.2%
30K· 18.64 mi
9:56/mi
2:58:13
↑ 181↓ 1480.2%
20M
9:52/mi
3:11:37
↑ 64↓ 500.2%
21M
10:31/mi
3:22:08
↑ 106↓ 241.6%
35K· 21.75 mi
10:32/mi
3:30:01
↑ 17↓ 861.7%
23M
10:10/mi
3:42:45
↑ 23↓ 630.6%
24M
10:50/mi
3:53:35
↓ 821.3%
40K· 24.85 mi
10:13/mi
4:02:19
↓ 200.3%
25.2M
10:35/mi
4:05:58
↑ 13↓ 160.2%
Finish· 26.22 mi
9:36/mi
4:15:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:14
Pace9:29 /mi
2nd Half
Distance13.11 mi
Time2:11:31
Pace10:02 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4031:0610:0131:06
10:01
-
10K
6.21 mi12:16:2059:469:3728:40
9:14
-0:47
15K
9.32 mi12:44:571:28:239:2928:37
9:13
-0:01
20K
12.43 mi13:14:271:57:539:2929:30
9:30
+0:17
Half
13.11 mi13:20:482:04:149:296:21
9:18
-0:12
25K
15.53 mi13:43:542:27:209:2923:06
9:32
+0:14
30K
18.64 mi14:14:472:58:139:3430:53
9:56
+0:24
20M
20.00 mi14:28:113:11:379:3513:24
9:52
-0:04
21M
21.00 mi14:38:423:22:089:3810:31
10:31
+0:39
35K
21.75 mi14:46:353:30:019:397:53
10:32
+0:01
23M
23.00 mi14:59:193:42:459:4112:44
10:10
-0:22
24M
24.00 mi15:10:093:53:359:4410:50
10:50
+0:40
40K
24.85 mi15:18:534:02:199:458:44
10:13
-0:37
25.2M
25.20 mi15:22:324:05:589:463:39
10:35
+0:22
Finish
26.22 mi15:32:194:15:459:469:47
9:36
-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

9:13 /mi

Average Pace

9:46 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:24

79% of race

Time at Steady Pace

54:21

21% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:45 /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 mi11:47:4031:0610:0131:06
10:01
#23466
10K
6.21 mi12:16:2059:469:3728:40
9:14
#22654
15K
9.32 mi12:44:571:28:239:2928:37
9:13
#22245
20K
12.43 mi13:14:271:57:539:2929:30
9:30
#22061
Half
13.11 mi13:20:482:04:149:296:21
9:18
#22028
25K
15.53 mi13:43:542:27:209:2923:06
9:32
#21848
30K
18.64 mi14:14:472:58:139:3430:53
9:56
#21647
20M
20.00 mi14:28:113:11:379:3513:24
9:52
#21547
21M
21.00 mi14:38:423:22:089:3810:31
10:31
#21421
35K
21.75 mi14:46:353:30:019:397:53
10:32
#21475
23M
23.00 mi14:59:193:42:459:4112:44
10:10
#21404
24M
24.00 mi15:10:093:53:359:4410:50
10:50
#21487
40K
24.85 mi15:18:534:02:199:458:44
10:13
#21443
25.2M
25.20 mi15:22:324:05:589:463:39
10:35
#21401
Finish
26.22 mi15:32:194:15:459:469:47
9:36
#21353
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi23466138111381121343(Top 80%)12900(Top 85%)12900(Top 573%)
10K6.21 mi3.10 mi22654+81213456+35513456+35521697(Top 82%)13022(Top 86%)13022(Top 578%)
15K9.32 mi3.11 mi22245+40913261+19513261+19521343(Top 80%)12900(Top 85%)12900(Top 573%)
20K12.43 mi3.11 mi22061+18413172+8913172+8921537(Top 81%)12973(Top 85%)12973(Top 576%)
Half13.11 mi0.68 mi22028+3313163+913163+921517(Top 81%)12971(Top 85%)12971(Top 576%)
25K15.53 mi2.42 mi21848+18013087+7613087+7620913(Top 79%)12672(Top 84%)12672(Top 563%)
30K18.64 mi3.11 mi21647+20112988+9912988+9920849(Top 78%)12571(Top 83%)12571(Top 558%)
20M20.00 mi1.36 mi21547+10012936+5212936+5220048(Top 75%)12146(Top 80%)12146(Top 539%)
21M21.00 mi1.00 mi21421+12612864+7212864+7219637(Top 74%)11894(Top 78%)11894(Top 528%)
35K21.75 mi0.75 mi21475-5412879-1512879-1522449(Top 84%)13132(Top 87%)13132(Top 583%)
23M23.00 mi1.25 mi21404+7112834+4512834+4520481(Top 77%)12241(Top 81%)12241(Top 544%)
24M24.00 mi1.00 mi21487-8312860-2612860-2622712(Top 85%)13210(Top 87%)13210(Top 587%)
40K24.85 mi0.85 mi21443+4412828+3212828+3220518(Top 77%)12157(Top 80%)12157(Top 540%)
25.2M25.20 mi0.35 mi21401+4212805+2312805+2319350(Top 73%)11641(Top 77%)11641(Top 517%)
Finish26.22 mi1.02 mi21353+4812774+3112774+3120468(Top 77%)12171(Top 80%)12171(Top 540%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21343

Males

12900

M45-49

12900

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21697

Males

13022

M45-49

13022

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21343

Males

12900

M45-49

12900

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21537

Males

12973

M45-49

12973

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21517

Males

12971

M45-49

12971

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

20913

Males

12672

M45-49

12672

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20849

Males

12571

M45-49

12571

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

20048

Males

12146

M45-49

12146

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19637

Males

11894

M45-49

11894

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22449

Males

13132

M45-49

13132

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

20481

Males

12241

M45-49

12241

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22712

Males

13210

M45-49

13210

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20518

Males

12157

M45-49

12157

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19350

Males

11641

M45-49

11641

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20468

Males

12171

M45-49

12171

Passing Analysis

Category:
Athletes Passed
2549
Passed By
436
Net Change
+2113
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23466
5K → 10K83018+812#23466#22654
10K → 15K42819+409#22654#22245
15K → 20K23349+184#22245#22061
20K → Half4613+33#22061#22028
Half → 25K20828+180#22028#21848
25K → 30K24443+201#21848#21647
30K → 20M11313+100#21647#21547
20M → 21M1359+126#21547#21421
21M → 35K2074-54#21421#21475
35K → 23M9423+71#21475#21404
23M → 24M20103-83#21404#21487
24M → 40K6521+44#21487#21443
40K → 25.2M442+42#21443#21401
25.2M → Finish6921+48#21401#21353
TOTALS2549436+2113
📊

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