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BOSTON MARATHON 2023

Ian Brohm

Bib: 26529•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:48
Rank: #21432
Start → 5K
28:48 | 9:16/mi
10K· 6.21 mi
54:10
Rank: #19205 (+2227)
5K → 10K
25:22 | 8:10/mi
15K· 9.32 mi
1:19:09
Rank: #17798 (+1407)
10K → 15K
24:59 | 8:02/mi
20K· 12.43 mi
1:44:09
Rank: #16799 (+999)
15K → 20K
25:00 | 8:03/mi
Half· 13.11 mi
1:49:36
Rank: #16694 (+105)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:09:17
Rank: #16191 (+503)
Half → 25K
19:41 | 8:07/mi
30K· 18.64 mi
2:35:34
Rank: #15783 (+408)
25K → 30K
26:17 | 8:28/mi
20M
2:47:17
Rank: #15639 (+144)
30K → 20M
11:43 | 8:37/mi
21M
2:57:10
Rank: #15768 (-129)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:03:53
Rank: #15825 (-57)
21M → 35K
6:43 | 8:59/mi
23M
3:16:11
Rank: #16136 (-311)
35K → 23M
12:18 | 9:49/mi
24M
3:25:14
Rank: #16188 (-52)
23M → 24M
9:03 | 9:03/mi
40K· 24.85 mi
3:33:17
Rank: #16253 (-65)
24M → 40K
8:03 | 9:25/mi
25.2M
3:36:57
Rank: #16339 (-86)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
3:45:28
Rank: #16273 (+66)
25.2M → Finish
8:31 | 8:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:36
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:55:52
Pace8:50 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:2528:489:1628:48
9:16
-
10K
6.21 mi12:10:4754:108:4325:22
8:10
-1:06
15K
9.32 mi12:35:461:19:098:3024:59
8:02
-0:08
20K
12.43 mi13:00:461:44:098:2325:00
8:03
+0:01
Half
13.11 mi13:06:131:49:368:225:27
7:59
-0:04
25K
15.53 mi13:25:542:09:178:1919:41
8:07
+0:08
30K
18.64 mi13:52:112:35:348:2126:17
8:28
+0:21
20M
20.00 mi14:03:542:47:178:2211:43
8:37
+0:09
21M
21.00 mi14:13:472:57:108:269:53
9:53
+1:16
35K
21.75 mi14:20:303:03:538:276:43
8:59
-0:54
23M
23.00 mi14:32:483:16:118:3212:18
9:49
+0:50
24M
24.00 mi14:41:513:25:148:339:03
9:03
-0:46
40K
24.85 mi14:49:543:33:178:358:03
9:25
+0:22
25.2M
25.20 mi14:53:343:36:578:373:40
10:38
+1:13
Finish
26.22 mi15:02:053:45:288:368:31
8:21
-2:17

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

7:59 /mi

Average Pace

8:36 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:29

45% of race

Time at Steady Pace

53:14

24% of race

Time at Slower Pace

1:11:45

32% of race

Average Pace: 8:36 /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 mi11:45:2528:489:1628:48
9:16
#21432
10K
6.21 mi12:10:4754:108:4325:22
8:10
#19205
15K
9.32 mi12:35:461:19:098:3024:59
8:02
#17798
20K
12.43 mi13:00:461:44:098:2325:00
8:03
#16799
Half
13.11 mi13:06:131:49:368:225:27
7:59
#16694
25K
15.53 mi13:25:542:09:178:1919:41
8:07
#16191
30K
18.64 mi13:52:112:35:348:2126:17
8:28
#15783
20M
20.00 mi14:03:542:47:178:2211:43
8:37
#15639
21M
21.00 mi14:13:472:57:108:269:53
9:53
#15768
35K
21.75 mi14:20:303:03:538:276:43
8:59
#15825
23M
23.00 mi14:32:483:16:118:3212:18
9:49
#16136
24M
24.00 mi14:41:513:25:148:339:03
9:03
#16188
40K
24.85 mi14:49:543:33:178:358:03
9:25
#16253
25.2M
25.20 mi14:53:343:36:578:373:40
10:38
#16339
Finish
26.22 mi15:02:053:45:288:368:31
8:21
#16273
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21432128131281314725(Top 55%)10189(Top 67%)10189(Top 193%)
10K6.21 mi3.10 mi19205+222711900+91311900+91316005(Top 60%)10709(Top 71%)10709(Top 203%)
15K9.32 mi3.11 mi17798+140711376+52411376+52414725(Top 55%)10189(Top 67%)10189(Top 193%)
20K12.43 mi3.11 mi16799+99910975+40110975+40113804(Top 52%)9798(Top 65%)9798(Top 185%)
Half13.11 mi0.68 mi16694+10510933+4210933+4214253(Top 54%)10025(Top 66%)10025(Top 190%)
25K15.53 mi2.42 mi16191+50310722+21110722+21113618(Top 51%)9614(Top 63%)9614(Top 182%)
30K18.64 mi3.11 mi15783+40810522+20010522+20014044(Top 53%)9674(Top 64%)9674(Top 183%)
20M20.00 mi1.36 mi15639+14410444+7810444+7814396(Top 54%)9742(Top 64%)9742(Top 184%)
21M21.00 mi1.00 mi15768-12910467-2310467-2317554(Top 66%)11028(Top 73%)11028(Top 209%)
35K21.75 mi0.75 mi15825-5710477-1010477-1017791(Top 67%)11047(Top 73%)11047(Top 209%)
23M23.00 mi1.25 mi16136-31110586-10910586-10919482(Top 73%)11787(Top 78%)11787(Top 223%)
24M24.00 mi1.00 mi16188-5210599-1310599-1317433(Top 65%)10814(Top 71%)10814(Top 205%)
40K24.85 mi0.85 mi16253-6510607-810607-817999(Top 68%)11027(Top 73%)11027(Top 209%)
25.2M25.20 mi0.35 mi16339-8610633-2610633-2619455(Top 73%)11663(Top 77%)11663(Top 221%)
Finish26.22 mi1.02 mi16273+6610604+2910604+2914439(Top 54%)9459(Top 62%)9459(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14725

Males

10189

M18-39

10189

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

16005

Males

10709

M18-39

10709

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14725

Males

10189

M18-39

10189

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

13804

Males

9798

M18-39

9798

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14253

Males

10025

M18-39

10025

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13618

Males

9614

M18-39

9614

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14044

Males

9674

M18-39

9674

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14396

Males

9742

M18-39

9742

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

17554

Males

11028

M18-39

11028

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17791

Males

11047

M18-39

11047

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19482

Males

11787

M18-39

11787

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17433

Males

10814

M18-39

10814

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

17999

Males

11027

M18-39

11027

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19455

Males

11663

M18-39

11663

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

14439

Males

9459

M18-39

9459

Passing Analysis

Category:
Athletes Passed
6155
Passed By
996
Net Change
+5159
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21432
5K → 10K22325+2227#21432#19205
10K → 15K14125+1407#19205#17798
15K → 20K10023+999#17798#16799
20K → Half1083+105#16799#16694
Half → 25K5063+503#16694#16191
25K → 30K42921+408#16191#15783
30K → 20M16117+144#15783#15639
20M → 21M54183-129#15639#15768
21M → 35K3390-57#15768#15825
35K → 23M20331-311#15825#16136
23M → 24M50102-52#16136#16188
24M → 40K44109-65#16188#16253
40K → 25.2M995-86#16253#16339
25.2M → Finish9529+66#16339#16273
TOTALS6155996+5159
📊

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