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BOSTON MARATHON 2023

Brett Bernacchi

Bib: 544•M

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Masters (Masters Men)
#0 / 9891
Top 0.7%
Division (M50-54)
#0 / 2052
Top 0.2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:51
Rank: #814
Start → 5K
18:51 | 6:04/mi
10K· 6.21 mi
37:09
Rank: #687 (+127)
5K → 10K
18:18 | 5:53/mi
15K· 9.32 mi
55:29
Rank: #624 (+63)
10K → 15K
18:20 | 5:54/mi
20K· 12.43 mi
1:13:57
Rank: #574 (+50)
15K → 20K
18:28 | 5:57/mi
Half· 13.11 mi
1:17:54
Rank: #562 (+12)
20K → Half
3:57 | 5:47/mi
25K· 15.53 mi
1:32:37
Rank: #569 (-7)
Half → 25K
14:43 | 6:04/mi
30K· 18.64 mi
1:52:05
Rank: #594 (-25)
25K → 30K
19:28 | 6:16/mi
20M
2:00:31
Rank: #592 (+2)
30K → 20M
8:26 | 6:12/mi
21M
2:07:04
Rank: #593 (-1)
20M → 21M
6:33 | 6:33/mi
35K· 21.75 mi
2:11:31
Rank: #589 (+4)
21M → 35K
4:27 | 5:57/mi
23M
2:19:13
Rank: #578 (+11)
35K → 23M
7:42 | 6:09/mi
24M
2:25:14
Rank: #571 (+7)
23M → 24M
6:01 | 6:01/mi
40K· 24.85 mi
2:30:29
Rank: #561 (+10)
24M → 40K
5:15 | 6:08/mi
25.2M
2:32:46
Rank: #560 (+1)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:38:50
Rank: #560
25.2M → Finish
6:04 | 5:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:54
Pace5:57 /mi
2nd Half
Distance13.11 mi
Time1:20:56
Pace6:10 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:0018:516:0418:51
6:04
-
10K
6.21 mi10:37:1837:095:5918:18
5:53
-0:11
15K
9.32 mi10:55:3855:295:5718:20
5:54
+0:01
20K
12.43 mi11:14:061:13:575:5718:28
5:57
+0:03
Half
13.11 mi11:18:031:17:545:573:57
5:47
-0:10
25K
15.53 mi11:32:461:32:375:5814:43
6:04
+0:17
30K
18.64 mi11:52:141:52:056:0119:28
6:16
+0:12
20M
20.00 mi12:00:402:00:316:028:26
6:12
-0:04
21M
21.00 mi12:07:132:07:046:036:33
6:33
+0:21
35K
21.75 mi12:11:402:11:316:034:27
5:57
-0:36
23M
23.00 mi12:19:222:19:136:037:42
6:09
+0:12
24M
24.00 mi12:25:232:25:146:036:01
6:01
-0:08
40K
24.85 mi12:30:382:30:296:035:15
6:08
+0:07
25.2M
25.20 mi12:32:552:32:466:042:17
6:37
+0:29
Finish
26.22 mi12:38:592:38:506:046:04
5:57
-0:40

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

5:47 /mi

Average Pace

6:04 /mi

Slowest Pace

6:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:00

94% of race

Time at Steady Pace

8:50

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:03 /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 mi10:19:0018:516:0418:51
6:04
#814
10K
6.21 mi10:37:1837:095:5918:18
5:53
#687
15K
9.32 mi10:55:3855:295:5718:20
5:54
#624
20K
12.43 mi11:14:061:13:575:5718:28
5:57
#574
Half
13.11 mi11:18:031:17:545:573:57
5:47
#562
25K
15.53 mi11:32:461:32:375:5814:43
6:04
#569
30K
18.64 mi11:52:141:52:056:0119:28
6:16
#594
20M
20.00 mi12:00:402:00:316:028:26
6:12
#592
21M
21.00 mi12:07:132:07:046:036:33
6:33
#593
35K
21.75 mi12:11:402:11:316:034:27
5:57
#589
23M
23.00 mi12:19:222:19:136:037:42
6:09
#578
24M
24.00 mi12:25:232:25:146:036:01
6:01
#571
40K
24.85 mi12:30:382:30:296:035:15
6:08
#561
25.2M
25.20 mi12:32:552:32:466:042:17
6:37
#560
Finish
26.22 mi12:38:592:38:506:046:04
5:57
#560
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi814765765516(Top 2%)474(Top 3%)474(Top 23%)
10K6.21 mi3.10 mi687+127643+122643+122577(Top 2%)534(Top 4%)534(Top 26%)
15K9.32 mi3.11 mi624+63581+62581+62516(Top 2%)474(Top 3%)474(Top 23%)
20K12.43 mi3.11 mi574+50531+50531+50490(Top 2%)451(Top 3%)451(Top 22%)
Half13.11 mi0.68 mi562+12520+11520+11391(Top 1%)362(Top 2%)362(Top 18%)
25K15.53 mi2.42 mi569-7528-8528-8664(Top 2%)623(Top 4%)623(Top 30%)
30K18.64 mi3.11 mi594-25554-26554-26816(Top 3%)776(Top 5%)776(Top 38%)
20M20.00 mi1.36 mi592+2552+2552+2654(Top 2%)617(Top 4%)617(Top 30%)
21M21.00 mi1.00 mi593-1553-1553-1742(Top 3%)700(Top 5%)700(Top 34%)
35K21.75 mi0.75 mi589+4549+4549+4587(Top 2%)549(Top 4%)549(Top 27%)
23M23.00 mi1.25 mi578+11539+10539+10540(Top 2%)509(Top 3%)509(Top 25%)
24M24.00 mi1.00 mi571+7531+8531+8574(Top 2%)544(Top 4%)544(Top 27%)
40K24.85 mi0.85 mi561+10522+9522+9552(Top 2%)521(Top 3%)521(Top 25%)
25.2M25.20 mi0.35 mi560+1521+1521+1678(Top 3%)643(Top 4%)643(Top 31%)
Finish26.22 mi1.02 mi560522-1522-1616(Top 2%)585(Top 4%)585(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

516

Males

474

M50-54

474

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

577

Males

534

M50-54

534

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

516

Males

474

M50-54

474

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

490

Males

451

M50-54

451

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

391

Males

362

M50-54

362

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

664

Males

623

M50-54

623

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

816

Males

776

M50-54

776

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

654

Males

617

M50-54

617

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

742

Males

700

M50-54

700

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

587

Males

549

M50-54

549

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

540

Males

509

M50-54

509

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

574

Males

544

M50-54

544

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

552

Males

521

M50-54

521

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

678

Males

643

M50-54

643

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

616

Males

585

M50-54

585

Passing Analysis

Category:
Athletes Passed
371
Passed By
117
Net Change
+254
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#814
5K → 10K1325+127#814#687
10K → 15K663+63#687#624
15K → 20K511+50#624#574
20K → Half120+12#574#562
Half → 25K1320-7#562#569
25K → 30K833-25#569#594
30K → 20M1412+2#594#592
20M → 21M78-1#592#593
21M → 35K95+4#593#589
35K → 23M176+11#589#578
23M → 24M158+7#578#571
24M → 40K133+10#571#561
40K → 25.2M43+1#561#560
25.2M → Finish10100#560#560
TOTALS371117+254
📊

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