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BOSTON MARATHON 2023

Robert Holcomb

Bib: 1763•M

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:34
Rank: #645
Start → 5K
18:34 | 5:59/mi
10K· 6.21 mi
36:50
Rank: #604 (+41)
5K → 10K
18:16 | 5:53/mi
15K· 9.32 mi
55:12
Rank: #577 (+27)
10K → 15K
18:22 | 5:55/mi
20K· 12.43 mi
1:13:47
Rank: #558 (+19)
15K → 20K
18:35 | 5:59/mi
Half· 13.11 mi
1:17:52
Rank: #558
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:32:52
Rank: #593 (-35)
Half → 25K
15:00 | 6:11/mi
30K· 18.64 mi
1:53:05
Rank: #705 (-112)
25K → 30K
20:13 | 6:30/mi
20M
2:02:04
Rank: #757 (-52)
30K → 20M
8:59 | 6:37/mi
21M
2:09:07
Rank: #795 (-38)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:13:50
Rank: #805 (-10)
21M → 35K
4:43 | 6:18/mi
23M
2:22:18
Rank: #848 (-43)
35K → 23M
8:28 | 6:46/mi
24M
2:29:01
Rank: #892 (-44)
23M → 24M
6:43 | 6:43/mi
40K· 24.85 mi
2:35:06
Rank: #938 (-46)
24M → 40K
6:05 | 7:07/mi
25.2M
2:37:45
Rank: #973 (-35)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
2:44:31
Rank: #1017 (-44)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:52
Pace5:56 /mi
2nd Half
Distance13.11 mi
Time1:26:39
Pace6:37 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:5118:345:5918:34
5:59
-
10K
6.21 mi10:37:0736:505:5618:16
5:53
-0:06
15K
9.32 mi10:55:2955:125:5518:22
5:55
+0:02
20K
12.43 mi11:14:041:13:475:5618:35
5:59
+0:04
Half
13.11 mi11:18:091:17:525:564:05
5:59
0:00
25K
15.53 mi11:33:091:32:525:5915:00
6:11
+0:12
30K
18.64 mi11:53:221:53:056:0420:13
6:30
+0:19
20M
20.00 mi12:02:212:02:046:068:59
6:37
+0:07
21M
21.00 mi12:09:242:09:076:097:03
7:03
+0:26
35K
21.75 mi12:14:072:13:506:094:43
6:18
-0:45
23M
23.00 mi12:22:352:22:186:118:28
6:46
+0:28
24M
24.00 mi12:29:182:29:016:136:43
6:43
-0:03
40K
24.85 mi12:35:232:35:066:146:05
7:07
+0:24
25.2M
25.20 mi12:38:022:37:456:162:39
7:41
+0:34
Finish
26.22 mi12:44:482:44:316:176:46
6:38
-1:03

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

5:53 /mi

Average Pace

6:17 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:52

56% of race

Time at Steady Pace

47:24

29% of race

Time at Slower Pace

24:15

15% of race

Average Pace: 6:16 /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 mi10:18:5118:345:5918:34
5:59
#645
10K
6.21 mi10:37:0736:505:5618:16
5:53
#604
15K
9.32 mi10:55:2955:125:5518:22
5:55
#577
20K
12.43 mi11:14:041:13:475:5618:35
5:59
#558
Half
13.11 mi11:18:091:17:525:564:05
5:59
#558
25K
15.53 mi11:33:091:32:525:5915:00
6:11
#593
30K
18.64 mi11:53:221:53:056:0420:13
6:30
#705
20M
20.00 mi12:02:212:02:046:068:59
6:37
#757
21M
21.00 mi12:09:242:09:076:097:03
7:03
#795
35K
21.75 mi12:14:072:13:506:094:43
6:18
#805
23M
23.00 mi12:22:352:22:186:118:28
6:46
#848
24M
24.00 mi12:29:182:29:016:136:43
6:43
#892
40K
24.85 mi12:35:232:35:066:146:05
7:07
#938
25.2M
25.20 mi12:38:022:37:456:162:39
7:41
#973
Finish
26.22 mi12:44:482:44:316:176:46
6:38
#1017
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi645601601541(Top 2%)499(Top 3%)499(Top 9%)
10K6.21 mi3.10 mi604+41562+39562+39555(Top 2%)513(Top 3%)513(Top 10%)
15K9.32 mi3.11 mi577+27534+28534+28541(Top 2%)499(Top 3%)499(Top 9%)
20K12.43 mi3.11 mi558+19516+18516+18538(Top 2%)498(Top 3%)498(Top 9%)
Half13.11 mi0.68 mi558516516734(Top 3%)693(Top 5%)693(Top 13%)
25K15.53 mi2.42 mi593-35552-36552-36969(Top 4%)920(Top 6%)920(Top 17%)
30K18.64 mi3.11 mi705-112663-111663-1111574(Top 6%)1506(Top 10%)1506(Top 28%)
20M20.00 mi1.36 mi757-52715-52715-521877(Top 7%)1789(Top 12%)1789(Top 34%)
21M21.00 mi1.00 mi795-38752-37752-372345(Top 9%)2214(Top 15%)2214(Top 42%)
35K21.75 mi0.75 mi805-10761-9761-91561(Top 6%)1481(Top 10%)1481(Top 28%)
23M23.00 mi1.25 mi848-43802-41802-412415(Top 9%)2267(Top 15%)2267(Top 43%)
24M24.00 mi1.00 mi892-44845-43845-433149(Top 12%)2915(Top 19%)2915(Top 55%)
40K24.85 mi0.85 mi938-46891-46891-464402(Top 17%)3903(Top 26%)3903(Top 74%)
25.2M25.20 mi0.35 mi973-35924-33924-334683(Top 18%)4036(Top 27%)4036(Top 76%)
Finish26.22 mi1.02 mi1017-44968-44968-443162(Top 12%)2839(Top 19%)2839(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

541

Males

499

M18-39

499

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

555

Males

513

M18-39

513

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

541

Males

499

M18-39

499

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

538

Males

498

M18-39

498

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

734

Males

693

M18-39

693

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

969

Males

920

M18-39

920

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1574

Males

1506

M18-39

1506

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1877

Males

1789

M18-39

1789

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2345

Males

2214

M18-39

2214

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1561

Males

1481

M18-39

1481

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2415

Males

2267

M18-39

2267

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3149

Males

2915

M18-39

2915

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4402

Males

3903

M18-39

3903

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4683

Males

4036

M18-39

4036

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3162

Males

2839

M18-39

2839

Passing Analysis

Category:
Athletes Passed
161
Passed By
533
Net Change
-372
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#645
5K → 10K5514+41#645#604
10K → 15K347+27#604#577
15K → 20K2910+19#577#558
20K → Half110#558#558
Half → 25K742-35#558#593
25K → 30K2114-112#593#705
30K → 20M355-52#705#757
20M → 21M644-38#757#795
21M → 35K313-10#795#805
35K → 23M750-43#805#848
23M → 24M549-44#848#892
24M → 40K147-46#892#938
40K → 25.2M136-35#938#973
25.2M → Finish751-44#973#1017
TOTALS161533-372
📊

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