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BOSTON MARATHON 2023

Marcus Brown

Bib: 6823•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Division (M18-39)
#0 / 5285
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:00
Rank: #4231
Start → 5K
21:00 | 6:46/mi
10K· 6.21 mi
41:11
Rank: #3370 (+861)
5K → 10K
20:11 | 6:30/mi
15K· 9.32 mi
1:01:21
Rank: #3059 (+311)
10K → 15K
20:10 | 6:29/mi
20K· 12.43 mi
1:22:03
Rank: #3095 (-36)
15K → 20K
20:42 | 6:40/mi
Half· 13.11 mi
1:26:35
Rank: #3122 (-27)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:42:52
Rank: #3149 (-27)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:04:12
Rank: #3140 (+9)
25K → 30K
21:20 | 6:52/mi
20M
2:13:53
Rank: #3248 (-108)
30K → 20M
9:41 | 7:08/mi
21M
2:21:01
Rank: #3191 (+57)
20M → 21M
7:08 | 7:08/mi
35K· 21.75 mi
2:26:00
Rank: #3173 (+18)
21M → 35K
4:59 | 6:40/mi
23M
2:34:52
Rank: #3227 (-54)
35K → 23M
8:52 | 7:05/mi
24M
2:41:42
Rank: #3235 (-8)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:47:43
Rank: #3252 (-17)
24M → 40K
6:01 | 7:02/mi
25.2M
2:50:17
Rank: #3249 (+3)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:57:16
Rank: #3268 (-19)
25.2M → Finish
6:59 | 6:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:35
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:30:41
Pace6:55 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3321:006:4621:00
6:46
-
10K
6.21 mi10:42:4441:116:3820:11
6:30
-0:16
15K
9.32 mi11:02:541:01:216:3520:10
6:29
-0:01
20K
12.43 mi11:23:361:22:036:3620:42
6:40
+0:11
Half
13.11 mi11:28:081:26:356:364:32
6:39
-0:01
25K
15.53 mi11:44:251:42:526:3716:17
6:43
+0:04
30K
18.64 mi12:05:452:04:126:4021:20
6:52
+0:09
20M
20.00 mi12:15:262:13:536:429:41
7:08
+0:16
21M
21.00 mi12:22:342:21:016:437:08
7:08
0:00
35K
21.75 mi12:27:332:26:006:434:59
6:40
-0:28
23M
23.00 mi12:36:252:34:526:448:52
7:05
+0:25
24M
24.00 mi12:43:152:41:426:446:50
6:50
-0:15
40K
24.85 mi12:49:162:47:436:456:01
7:02
+0:12
25.2M
25.20 mi12:51:502:50:176:452:34
7:27
+0:25
Finish
26.22 mi12:58:492:57:166:466:59
6:51
-0:36

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

6:29 /mi

Average Pace

6:46 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:53

89% of race

Time at Steady Pace

19:23

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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 mi10:22:3321:006:4621:00
6:46
#4231
10K
6.21 mi10:42:4441:116:3820:11
6:30
#3370
15K
9.32 mi11:02:541:01:216:3520:10
6:29
#3059
20K
12.43 mi11:23:361:22:036:3620:42
6:40
#3095
Half
13.11 mi11:28:081:26:356:364:32
6:39
#3122
25K
15.53 mi11:44:251:42:526:3716:17
6:43
#3149
30K
18.64 mi12:05:452:04:126:4021:20
6:52
#3140
20M
20.00 mi12:15:262:13:536:429:41
7:08
#3248
21M
21.00 mi12:22:342:21:016:437:08
7:08
#3191
35K
21.75 mi12:27:332:26:006:434:59
6:40
#3173
23M
23.00 mi12:36:252:34:526:448:52
7:05
#3227
24M
24.00 mi12:43:152:41:426:446:50
6:50
#3235
40K
24.85 mi12:49:162:47:436:456:01
7:02
#3252
25.2M
25.20 mi12:51:502:50:176:452:34
7:27
#3249
Finish
26.22 mi12:58:492:57:166:466:59
6:51
#3268
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4231396039602585(Top 10%)2480(Top 16%)2480(Top 47%)
10K6.21 mi3.10 mi3370+8613189+7713189+7712765(Top 10%)2643(Top 17%)2643(Top 50%)
15K9.32 mi3.11 mi3059+3112915+2742915+2742585(Top 10%)2480(Top 16%)2480(Top 47%)
20K12.43 mi3.11 mi3095-362951-362951-363274(Top 12%)3108(Top 20%)3108(Top 59%)
Half13.11 mi0.68 mi3122-272975-242975-243754(Top 14%)3538(Top 23%)3538(Top 67%)
25K15.53 mi2.42 mi3149-272998-232998-233479(Top 13%)3292(Top 22%)3292(Top 62%)
30K18.64 mi3.11 mi3140+92991+72991+73430(Top 13%)3226(Top 21%)3226(Top 61%)
20M20.00 mi1.36 mi3248-1083081-903081-904770(Top 18%)4350(Top 29%)4350(Top 82%)
21M21.00 mi1.00 mi3191+573027+543027+542723(Top 10%)2557(Top 17%)2557(Top 48%)
35K21.75 mi0.75 mi3173+183009+183009+183335(Top 13%)3105(Top 20%)3105(Top 59%)
23M23.00 mi1.25 mi3227-543057-483057-484187(Top 16%)3830(Top 25%)3830(Top 72%)
24M24.00 mi1.00 mi3235-83061-43061-43810(Top 14%)3482(Top 23%)3482(Top 66%)
40K24.85 mi0.85 mi3252-173078-173078-174000(Top 15%)3582(Top 24%)3582(Top 68%)
25.2M25.20 mi0.35 mi3249+33073+53073+53587(Top 13%)3215(Top 21%)3215(Top 61%)
Finish26.22 mi1.02 mi3268-193090-173090-174342(Top 16%)3800(Top 25%)3800(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2585

Males

2480

M18-39

2480

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2765

Males

2643

M18-39

2643

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2585

Males

2480

M18-39

2480

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3274

Males

3108

M18-39

3108

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3754

Males

3538

M18-39

3538

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3479

Males

3292

M18-39

3292

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3430

Males

3226

M18-39

3226

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4770

Males

4350

M18-39

4350

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2723

Males

2557

M18-39

2557

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3335

Males

3105

M18-39

3105

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4187

Males

3830

M18-39

3830

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3810

Males

3482

M18-39

3482

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4000

Males

3582

M18-39

3582

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3587

Males

3215

M18-39

3215

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4342

Males

3800

M18-39

3800

Passing Analysis

Category:
Athletes Passed
1742
Passed By
779
Net Change
+963
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4231
5K → 10K87615+861#4231#3370
10K → 15K3198+311#3370#3059
15K → 20K68104-36#3059#3095
20K → Half633-27#3095#3122
Half → 25K5380-27#3122#3149
25K → 30K10394+9#3149#3140
30K → 20M30138-108#3140#3248
20M → 21M7013+57#3248#3191
21M → 35K3921+18#3191#3173
35K → 23M4195-54#3173#3227
23M → 24M3846-8#3227#3235
24M → 40K3552-17#3235#3252
40K → 25.2M1815+3#3252#3249
25.2M → Finish4665-19#3249#3268
TOTALS1742779+963
📊

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