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BOSTON MARATHON 2023

David Black

Bib: 7659•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 20%
Gender (Male)
#0 / 15176
Top 32%
Masters (Masters Men)
#0 / 9891
Top 18%
Division (M60-64)
#0 / 1110
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:41
Rank: #6126
Start → 5K
21:41 | 6:59/mi
10K· 6.21 mi
43:26
Rank: #6445 (-319)
5K → 10K
21:45 | 7:00/mi
15K· 9.32 mi
1:06:31
Rank: #7331 (-886)
10K → 15K
23:05 | 7:26/mi
20K· 12.43 mi
1:28:23
Rank: #7003 (+328)
15K → 20K
21:52 | 7:02/mi
Half· 13.11 mi
1:33:09
Rank: #6971 (+32)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:50:23
Rank: #6793 (+178)
Half → 25K
17:14 | 7:06/mi
30K· 18.64 mi
2:12:16
Rank: #6376 (+417)
25K → 30K
21:53 | 7:03/mi
20M
2:21:51
Rank: #6194 (+182)
30K → 20M
9:35 | 7:03/mi
21M
2:29:08
Rank: #6004 (+190)
20M → 21M
7:17 | 7:17/mi
35K· 21.75 mi
2:34:17
Rank: #5915 (+89)
21M → 35K
5:09 | 6:53/mi
23M
2:43:09
Rank: #5780 (+135)
35K → 23M
8:52 | 7:05/mi
24M
2:50:06
Rank: #5655 (+125)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:56:10
Rank: #5573 (+82)
24M → 40K
6:04 | 7:06/mi
25.2M
2:58:44
Rank: #5519 (+54)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
3:05:35
Rank: #5376 (+143)
25.2M → Finish
6:51 | 6:43/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:33:09
Pace7:06 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:32:26
Pace7:03 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:2121:416:5921:41
6:59
-
10K
6.21 mi10:48:0643:266:5921:45
7:00
+0:01
15K
9.32 mi11:11:111:06:317:0823:05
7:26
+0:26
20K
12.43 mi11:33:031:28:237:0721:52
7:02
-0:24
Half
13.11 mi11:37:491:33:097:064:46
6:59
-0:03
25K
15.53 mi11:55:031:50:237:0617:14
7:06
+0:07
30K
18.64 mi12:16:562:12:167:0621:53
7:03
-0:03
20M
20.00 mi12:26:312:21:517:069:35
7:03
0:00
21M
21.00 mi12:33:482:29:087:067:17
7:17
+0:14
35K
21.75 mi12:38:572:34:177:065:09
6:53
-0:24
23M
23.00 mi12:47:492:43:097:068:52
7:05
+0:12
24M
24.00 mi12:54:462:50:067:056:57
6:57
-0:08
40K
24.85 mi13:00:502:56:107:056:04
7:06
+0:09
25.2M
25.20 mi13:03:242:58:447:062:34
7:27
+0:21
Finish
26.22 mi13:10:153:05:357:056:51
6:43
-0:44

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

6:43 /mi

Average Pace

7:05 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:56

86% of race

Time at Steady Pace

25:39

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:05 /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 mi10:26:2121:416:5921:41
6:59
#6126
10K
6.21 mi10:48:0643:266:5921:45
7:00
#6445
15K
9.32 mi11:11:111:06:317:0823:05
7:26
#7331
20K
12.43 mi11:33:031:28:237:0721:52
7:02
#7003
Half
13.11 mi11:37:491:33:097:064:46
6:59
#6971
25K
15.53 mi11:55:031:50:237:0617:14
7:06
#6793
30K
18.64 mi12:16:562:12:167:0621:53
7:03
#6376
20M
20.00 mi12:26:312:21:517:069:35
7:03
#6194
21M
21.00 mi12:33:482:29:087:067:17
7:17
#6004
35K
21.75 mi12:38:572:34:177:065:09
6:53
#5915
23M
23.00 mi12:47:492:43:097:068:52
7:05
#5780
24M
24.00 mi12:54:462:50:067:056:57
6:57
#5655
40K
24.85 mi13:00:502:56:107:056:04
7:06
#5573
25.2M
25.20 mi13:03:242:58:447:062:34
7:27
#5519
Finish
26.22 mi13:10:153:05:357:056:51
6:43
#5376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi6126559555959579(Top 36%)7906(Top 52%)7906(Top 712%)
10K6.21 mi3.10 mi6445-3195825-2305825-2306813(Top 26%)6096(Top 40%)6096(Top 549%)
15K9.32 mi3.11 mi7331-8866499-6746499-6749579(Top 36%)7906(Top 52%)7906(Top 712%)
20K12.43 mi3.11 mi7003+3286254+2456254+2456198(Top 23%)5619(Top 37%)5619(Top 506%)
Half13.11 mi0.68 mi6971+326227+276227+276421(Top 24%)5797(Top 38%)5797(Top 522%)
25K15.53 mi2.42 mi6793+1786077+1506077+1506136(Top 23%)5538(Top 36%)5538(Top 499%)
30K18.64 mi3.11 mi6376+4175750+3275750+3274637(Top 17%)4289(Top 28%)4289(Top 386%)
20M20.00 mi1.36 mi6194+1825597+1535597+1534354(Top 16%)4014(Top 26%)4014(Top 362%)
21M21.00 mi1.00 mi6004+1905441+1565441+1563547(Top 13%)3298(Top 22%)3298(Top 297%)
35K21.75 mi0.75 mi5915+895369+725369+724692(Top 18%)4257(Top 28%)4257(Top 384%)
23M23.00 mi1.25 mi5780+1355250+1195250+1194227(Top 16%)3870(Top 26%)3870(Top 349%)
24M24.00 mi1.00 mi5655+1255146+1045146+1044430(Top 17%)4005(Top 26%)4005(Top 361%)
40K24.85 mi0.85 mi5573+825075+715075+714351(Top 16%)3867(Top 25%)3867(Top 348%)
25.2M25.20 mi0.35 mi5519+545028+475028+473671(Top 14%)3299(Top 22%)3299(Top 297%)
Finish26.22 mi1.02 mi5376+1434904+1244904+1243649(Top 14%)3263(Top 22%)3263(Top 294%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9579

Males

7906

M60-64

7906

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6813

Males

6096

M60-64

6096

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9579

Males

7906

M60-64

7906

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6198

Males

5619

M60-64

5619

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6421

Males

5797

M60-64

5797

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6136

Males

5538

M60-64

5538

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4637

Males

4289

M60-64

4289

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4354

Males

4014

M60-64

4014

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3547

Males

3298

M60-64

3298

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4692

Males

4257

M60-64

4257

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4227

Males

3870

M60-64

3870

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4430

Males

4005

M60-64

4005

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4351

Males

3867

M60-64

3867

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3671

Males

3299

M60-64

3299

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3649

Males

3263

M60-64

3263

Passing Analysis

Category:
Athletes Passed
2085
Passed By
1335
Net Change
+750
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6126
5K → 10K66385-319#6126#6445
10K → 15K8894-886#6445#7331
15K → 20K3324+328#7331#7003
20K → Half375+32#7003#6971
Half → 25K1879+178#6971#6793
25K → 30K4181+417#6793#6376
30K → 20M1864+182#6376#6194
20M → 21M1911+190#6194#6004
21M → 35K923+89#6004#5915
35K → 23M1405+135#5915#5780
23M → 24M1327+125#5780#5655
24M → 40K9210+82#5655#5573
40K → 25.2M562+54#5573#5519
25.2M → Finish1485+143#5519#5376
TOTALS20851335+750
📊

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