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BOSTON MARATHON 2023

Marc Bomhof

Bib: 3205•M

AB

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Masters (Masters Men)
#0 / 9891
Top 3%
Division (M40-44)
#0 / 2241
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:45
Rank: #1633
Start → 5K
19:45 | 6:21/mi
10K· 6.21 mi
39:38
Rank: #1889 (-256)
5K → 10K
19:53 | 6:24/mi
15K· 9.32 mi
59:42
Rank: #2025 (-136)
10K → 15K
20:04 | 6:28/mi
20K· 12.43 mi
1:19:40
Rank: #1984 (+41)
15K → 20K
19:58 | 6:26/mi
Half· 13.11 mi
1:24:01
Rank: #1983 (+1)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:39:44
Rank: #1986 (-3)
Half → 25K
15:43 | 6:29/mi
30K· 18.64 mi
1:59:57
Rank: #1894 (+92)
25K → 30K
20:13 | 6:30/mi
20M
2:08:32
Rank: #1773 (+121)
30K → 20M
8:35 | 6:19/mi
21M
2:15:10
Rank: #1704 (+69)
20M → 21M
6:38 | 6:38/mi
35K· 21.75 mi
2:19:49
Rank: #1677 (+27)
21M → 35K
4:39 | 6:13/mi
23M
2:27:57
Rank: #1650 (+27)
35K → 23M
8:08 | 6:30/mi
24M
2:34:13
Rank: #1602 (+48)
23M → 24M
6:16 | 6:16/mi
40K· 24.85 mi
2:39:40
Rank: #1573 (+29)
24M → 40K
5:27 | 6:22/mi
25.2M
2:41:58
Rank: #1551 (+22)
40K → 25.2M
2:18 | 6:40/mi
Finish· 26.22 mi
2:48:16
Rank: #1510 (+41)
25.2M → Finish
6:18 | 6:11/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:24:01
Pace6:25 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:15
Pace6:26 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5619:456:2119:45
6:21
-
10K
6.21 mi10:40:4939:386:2319:53
6:24
+0:03
15K
9.32 mi11:00:5359:426:2420:04
6:28
+0:04
20K
12.43 mi11:20:511:19:406:2519:58
6:26
-0:02
Half
13.11 mi11:25:121:24:016:254:21
6:23
-0:03
25K
15.53 mi11:40:551:39:446:2515:43
6:29
+0:06
30K
18.64 mi12:01:081:59:576:2620:13
6:30
+0:01
20M
20.00 mi12:09:432:08:326:268:35
6:19
-0:11
21M
21.00 mi12:16:212:15:106:266:38
6:38
+0:19
35K
21.75 mi12:21:002:19:496:264:39
6:13
-0:25
23M
23.00 mi12:29:082:27:576:268:08
6:30
+0:17
24M
24.00 mi12:35:242:34:136:266:16
6:16
-0:14
40K
24.85 mi12:40:512:39:406:255:27
6:22
+0:06
25.2M
25.20 mi12:43:092:41:586:262:18
6:40
+0:18
Finish
26.22 mi12:49:272:48:166:256:18
6:11
-0:29

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

6:11 /mi

Average Pace

6:25 /mi

Slowest Pace

6:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:59

78% of race

Time at Steady Pace

37:17

22% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:25 /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 mi10:20:5619:456:2119:45
6:21
#1633
10K
6.21 mi10:40:4939:386:2319:53
6:24
#1889
15K
9.32 mi11:00:5359:426:2420:04
6:28
#2025
20K
12.43 mi11:20:511:19:406:2519:58
6:26
#1984
Half
13.11 mi11:25:121:24:016:254:21
6:23
#1983
25K
15.53 mi11:40:551:39:446:2515:43
6:29
#1986
30K
18.64 mi12:01:081:59:576:2620:13
6:30
#1894
20M
20.00 mi12:09:432:08:326:268:35
6:19
#1773
21M
21.00 mi12:16:212:15:106:266:38
6:38
#1704
35K
21.75 mi12:21:002:19:496:264:39
6:13
#1677
23M
23.00 mi12:29:082:27:576:268:08
6:30
#1650
24M
24.00 mi12:35:242:34:136:266:16
6:16
#1602
40K
24.85 mi12:40:512:39:406:255:27
6:22
#1573
25.2M
25.20 mi12:43:092:41:586:262:18
6:40
#1551
Finish
26.22 mi12:49:272:48:166:256:18
6:11
#1510
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1633155615562392(Top 9%)2295(Top 15%)2295(Top 102%)
10K6.21 mi3.10 mi1889-2561809-2531809-2532232(Top 8%)2135(Top 14%)2135(Top 95%)
15K9.32 mi3.11 mi2025-1361940-1311940-1312392(Top 9%)2295(Top 15%)2295(Top 102%)
20K12.43 mi3.11 mi1984+411900+401900+401902(Top 7%)1825(Top 12%)1825(Top 81%)
Half13.11 mi0.68 mi1983+11899+11899+12059(Top 8%)1975(Top 13%)1975(Top 88%)
25K15.53 mi2.42 mi1986-31903-41903-42071(Top 8%)1985(Top 13%)1985(Top 89%)
30K18.64 mi3.11 mi1894+921813+901813+901580(Top 6%)1512(Top 10%)1512(Top 67%)
20M20.00 mi1.36 mi1773+1211695+1181695+118918(Top 3%)877(Top 6%)877(Top 39%)
21M21.00 mi1.00 mi1704+691630+651630+65945(Top 4%)897(Top 6%)897(Top 40%)
35K21.75 mi0.75 mi1677+271604+261604+261299(Top 5%)1236(Top 8%)1236(Top 55%)
23M23.00 mi1.25 mi1650+271579+251579+251400(Top 5%)1328(Top 9%)1328(Top 59%)
24M24.00 mi1.00 mi1602+481531+481531+481250(Top 5%)1184(Top 8%)1184(Top 53%)
40K24.85 mi0.85 mi1573+291503+281503+281128(Top 4%)1067(Top 7%)1067(Top 48%)
25.2M25.20 mi0.35 mi1551+221482+211482+21844(Top 3%)805(Top 5%)805(Top 36%)
Finish26.22 mi1.02 mi1510+411443+391443+391218(Top 5%)1159(Top 8%)1159(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2392

Males

2295

M40-44

2295

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2232

Males

2135

M40-44

2135

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2392

Males

2295

M40-44

2295

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1902

Males

1825

M40-44

1825

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2059

Males

1975

M40-44

1975

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2071

Males

1985

M40-44

1985

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1580

Males

1512

M40-44

1512

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

918

Males

877

M40-44

877

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

945

Males

897

M40-44

897

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1299

Males

1236

M40-44

1236

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1400

Males

1328

M40-44

1328

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1250

Males

1184

M40-44

1184

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1128

Males

1067

M40-44

1067

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

844

Males

805

M40-44

805

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1218

Males

1159

M40-44

1159

Passing Analysis

Category:
Athletes Passed
716
Passed By
593
Net Change
+123
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1633
5K → 10K16272-256#1633#1889
10K → 15K27163-136#1889#2025
15K → 20K7736+41#2025#1984
20K → Half1211+1#1984#1983
Half → 25K4750-3#1983#1986
25K → 30K11119+92#1986#1894
30K → 20M1221+121#1894#1773
20M → 21M701+69#1773#1704
21M → 35K325+27#1704#1677
35K → 23M3912+27#1677#1650
23M → 24M5911+48#1650#1602
24M → 40K378+29#1602#1573
40K → 25.2M231+22#1573#1551
25.2M → Finish443+41#1551#1510
TOTALS716593+123
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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