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BOSTON MARATHON 2023

Brian Roffi

Bib: 26229•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
29:07
Rank: #21719
Start → 5K
29:07 | 9:22/mi
10K· 6.21 mi
57:44
Rank: #21698 (+21)
5K → 10K
28:37 | 9:13/mi
15K· 9.32 mi
1:26:24
Rank: #21602 (+96)
10K → 15K
28:40 | 9:14/mi
20K· 12.43 mi
1:54:35
Rank: #21244 (+358)
15K → 20K
28:11 | 9:04/mi
Half· 13.11 mi
2:00:35
Rank: #21172 (+72)
20K → Half
6:00 | 8:48/mi
25K· 15.53 mi
2:23:59
Rank: #21182 (-10)
Half → 25K
23:24 | 9:39/mi
30K· 18.64 mi
2:53:30
Rank: #20851 (+331)
25K → 30K
29:31 | 9:30/mi
20M
3:06:55
Rank: #20765 (+86)
30K → 20M
13:25 | 9:52/mi
21M
3:16:37
Rank: #20554 (+211)
20M → 21M
9:42 | 9:42/mi
35K· 21.75 mi
3:24:57
Rank: #20709 (-155)
21M → 35K
8:20 | 11:08/mi
23M
3:36:31
Rank: #20508 (+201)
35K → 23M
11:34 | 9:14/mi
24M
3:46:51
Rank: #20562 (-54)
23M → 24M
10:20 | 10:20/mi
40K· 24.85 mi
3:54:52
Rank: #20450 (+112)
24M → 40K
8:01 | 9:23/mi
25.2M
3:58:50
Rank: #20476 (-26)
40K → 25.2M
3:58 | 11:30/mi
Finish· 26.22 mi
4:07:25
Rank: #20327 (+149)
25.2M → Finish
8:35 | 8:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:35
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:06:50
Pace9:41 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2829:079:2229:07
9:22
-
10K
6.21 mi12:18:0557:449:1728:37
9:13
-0:09
15K
9.32 mi12:46:451:26:249:1628:40
9:14
+0:01
20K
12.43 mi13:14:561:54:359:1328:11
9:04
-0:10
Half
13.11 mi13:20:562:00:359:126:00
8:48
-0:16
25K
15.53 mi13:44:202:23:599:1623:24
9:39
+0:51
30K
18.64 mi14:13:512:53:309:1829:31
9:30
-0:09
20M
20.00 mi14:27:163:06:559:2113:25
9:52
+0:22
21M
21.00 mi14:36:583:16:379:229:42
9:42
-0:10
35K
21.75 mi14:45:183:24:579:258:20
11:08
+1:26
23M
23.00 mi14:56:523:36:319:2511:34
9:14
-1:54
24M
24.00 mi15:07:123:46:519:2710:20
10:20
+1:06
40K
24.85 mi15:15:133:54:529:278:01
9:23
-0:57
25.2M
25.20 mi15:19:113:58:509:293:58
11:30
+2:07
Finish
26.22 mi15:27:464:07:259:278:35
8:25
-3:05

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

8:25 /mi

Average Pace

9:27 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:35

6% of race

Time at Steady Pace

3:16:47

80% of race

Time at Slower Pace

36:03

15% of race

Average Pace: 9:26 /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 mi11:49:2829:079:2229:07
9:22
#21719
10K
6.21 mi12:18:0557:449:1728:37
9:13
#21698
15K
9.32 mi12:46:451:26:249:1628:40
9:14
#21602
20K
12.43 mi13:14:561:54:359:1328:11
9:04
#21244
Half
13.11 mi13:20:562:00:359:126:00
8:48
#21172
25K
15.53 mi13:44:202:23:599:1623:24
9:39
#21182
30K
18.64 mi14:13:512:53:309:1829:31
9:30
#20851
20M
20.00 mi14:27:163:06:559:2113:25
9:52
#20765
21M
21.00 mi14:36:583:16:379:229:42
9:42
#20554
35K
21.75 mi14:45:183:24:579:258:20
11:08
#20709
23M
23.00 mi14:56:523:36:319:2511:34
9:14
#20508
24M
24.00 mi15:07:123:46:519:2710:20
10:20
#20562
40K
24.85 mi15:15:133:54:529:278:01
9:23
#20450
25.2M
25.20 mi15:19:113:58:509:293:58
11:30
#20476
Finish
26.22 mi15:27:464:07:259:278:35
8:25
#20327
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21719129471294721391(Top 80%)12923(Top 85%)12923(Top 245%)
10K6.21 mi3.10 mi21698+2112991-4412991-4421647(Top 81%)12998(Top 86%)12998(Top 246%)
15K9.32 mi3.11 mi21602+9612964+2712964+2721391(Top 80%)12923(Top 85%)12923(Top 245%)
20K12.43 mi3.11 mi21244+35812820+14412820+14420007(Top 75%)12304(Top 81%)12304(Top 233%)
Half13.11 mi0.68 mi21172+7212793+2712793+2719445(Top 73%)12086(Top 80%)12086(Top 229%)
25K15.53 mi2.42 mi21182-1012789+412789+421290(Top 80%)12831(Top 85%)12831(Top 243%)
30K18.64 mi3.11 mi20851+33112644+14512644+14519445(Top 73%)11985(Top 79%)11985(Top 227%)
20M20.00 mi1.36 mi20765+8612589+5512589+5520089(Top 75%)12156(Top 80%)12156(Top 230%)
21M21.00 mi1.00 mi20554+21112472+11712472+11716844(Top 63%)10732(Top 71%)10732(Top 203%)
35K21.75 mi0.75 mi20709-15512536-6412536-6423535(Top 88%)13616(Top 90%)13616(Top 258%)
23M23.00 mi1.25 mi20508+20112430+10612430+10617240(Top 65%)10801(Top 71%)10801(Top 204%)
24M24.00 mi1.00 mi20562-5412445-1512445-1521626(Top 81%)12697(Top 84%)12697(Top 240%)
40K24.85 mi0.85 mi20450+11212391+5412391+5417847(Top 67%)10969(Top 72%)10969(Top 208%)
25.2M25.20 mi0.35 mi20476-2612393-212393-221541(Top 81%)12632(Top 83%)12632(Top 239%)
Finish26.22 mi1.02 mi20327+14912322+7112322+7114887(Top 56%)9682(Top 64%)9682(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21391

Males

12923

M18-39

12923

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21647

Males

12998

M18-39

12998

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21391

Males

12923

M18-39

12923

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

20007

Males

12304

M18-39

12304

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

19445

Males

12086

M18-39

12086

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21290

Males

12831

M18-39

12831

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19445

Males

11985

M18-39

11985

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

20089

Males

12156

M18-39

12156

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16844

Males

10732

M18-39

10732

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

23535

Males

13616

M18-39

13616

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

17240

Males

10801

M18-39

10801

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

21626

Males

12697

M18-39

12697

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17847

Males

10969

M18-39

10969

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21541

Males

12632

M18-39

12632

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14887

Males

9682

M18-39

9682

Passing Analysis

Category:
Athletes Passed
2278
Passed By
886
Net Change
+1392
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21719
5K → 10K291270+21#21719#21698
10K → 15K214118+96#21698#21602
15K → 20K38123+358#21602#21244
20K → Half731+72#21244#21172
Half → 25K101111-10#21172#21182
25K → 30K35423+331#21182#20851
30K → 20M12337+86#20851#20765
20M → 21M2132+211#20765#20554
21M → 35K14169-155#20554#20709
35K → 23M2021+201#20709#20508
23M → 24M2983-54#20508#20562
24M → 40K1175+112#20562#20450
40K → 25.2M1642-26#20450#20476
25.2M → Finish1501+149#20476#20327
TOTALS2278886+1392
📊

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