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BOSTON MARATHON 2023

Brett Bernacchi

AZ

Bib: 544 M

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:04/mi
18:51
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:53/mi
37:09
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:54/mi
55:29
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
5:57/mi
1:13:57
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
5:47/mi
1:17:54
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:04/mi
1:32:37
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
6:16/mi
1:52:05
↑ 181↓ 1480.2%
138 ft elev
20M
6:12/mi
2:00:31
↑ 64↓ 500.2%
148 ft elev
21M
6:33/mi
2:07:04
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
5:57/mi
2:11:31
↑ 17↓ 861.7%
156 ft elev
23M
6:09/mi
2:19:13
↑ 23↓ 630.6%
116 ft elev
24M
6:01/mi
2:25:14
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:08/mi
2:30:29
↓ 200.3%
20 ft elev
25.2M
6:37/mi
2:32:46
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
5:57/mi
2:38:50
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:17:545:57 /mi⚡ faster
2nd Half
1:20:566:10 /mi+3.9%
Positive split — 3.9% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
18:516:043.11 mi18:51
6:04
-
10K
37:095:593.10 mi18:18
5:53
-0:11
15K
55:295:573.11 mi18:20
5:54
+0:01
20K
1:13:575:573.11 mi18:28
5:57
+0:03
Half(13.11 mi)
1:17:545:570.68 mi3:57
5:47
-0:10
25K
1:32:375:582.42 mi14:43
6:04
+0:17
30K
1:52:056:013.11 mi19:28
6:16
+0:12
20M
2:00:316:021.36 mi8:26
6:12
-0:04
21M
2:07:046:031.00 mi6:33
6:33
+0:21
35K
2:11:316:030.75 mi4:27
5:57
-0:36
23M
2:19:136:031.25 mi7:42
6:09
+0:12
24M
2:25:146:031.00 mi6:01
6:01
-0:08
40K
2:30:296:030.85 mi5:15
6:08
+0:07
25.2M
2:32:466:040.35 mi2:17
6:37
+0:29
Finish(26.22 mi)
2:38:506:041.02 mi6:04
5:57
-0:40
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

5:47 /mi

Average Pace

6:04 /mi

Slowest Pace

6:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

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

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi814765765516474474
10K3.10 mi687+127643+122643+122577534534
15K3.11 mi624+63581+62581+62516474474
20K3.11 mi574+50531+50531+50490451451
Half(13.11 mi)0.68 mi562+12520+11520+11391362362
25K2.42 mi569-7528-8528-8664623623
30K3.11 mi594-25554-26554-26816776776
20M1.36 mi592+2552+2552+2654617617
21M1.00 mi593-1553-1553-1742700700
35K0.75 mi589+4549+4549+4587549549
23M1.25 mi578+11539+10539+10540509509
24M1.00 mi571+7531+8531+8574544544
40K0.85 mi561+10522+9522+9552521521
25.2M0.35 mi560+1521+1521+1678643643
Finish(26.22 mi)1.02 mi560522-1522-1616585585

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21story building
+97ft-345ft

Overall

516

Males

474

M50-54

474

5K→10K

3.1 - 6.2 mi

Top 2%
×5story building
+79ft-138ft

Overall

577

Males

534

M50-54

534

10K→15K

6.2 - 9.3 mi

Top 2%
×3story building
+67ft-78ft

Overall

516

Males

474

M50-54

474

15K→20K

9.3 - 12.4 mi

Top 2%
×5story building
+106ft-86ft

Overall

490

Males

451

M50-54

451

20K→Half

12.4 - 13.1 mi

Top 1%
×2story building
+19ft-37ft

Overall

391

Males

362

M50-54

362

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

664

Males

623

M50-54

623

25K→30K

15.5 - 18.6 mi

Top 3%
×9story building
+181ft-148ft

Overall

816

Males

776

M50-54

776

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

654

Males

617

M50-54

617

20M→21M

20.0 - 21.0 mi

Top 3%
×8story building
+106ft-24ft

Overall

742

Males

700

M50-54

700

21M→35K

21.0 - 21.8 mi

Top 2%
×7story building
+17ft-86ft

Overall

587

Males

549

M50-54

549

35K→23M

21.8 - 23.0 mi

Top 2%
×5story building
+23ft-63ft

Overall

540

Males

509

M50-54

509

23M→24M

23.0 - 24.0 mi

Top 2%
×6story building
+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%
×2story building
+22ft-21ft

Overall

616

Males

585

M50-54

585

Passing Analysis

Category:
Passed
371
Passed By
117
Net Change
+254
SegmentPassedPassed 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 Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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