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BOSTON MARATHON 2023

Peter Grezer

Bib: 4193•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 23%
Division (M18-39)
#0 / 5285
Top 47%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:13
Rank: #4932
Start → 5K
21:13 | 6:50/mi
10K· 6.21 mi
42:02
Rank: #4637 (+295)
5K → 10K
20:49 | 6:42/mi
15K· 9.32 mi
1:02:39
Rank: #4229 (+408)
10K → 15K
20:37 | 6:38/mi
20K· 12.43 mi
1:23:34
Rank: #4113 (+116)
15K → 20K
20:55 | 6:44/mi
Half· 13.11 mi
1:28:05
Rank: #4067 (+46)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:44:19
Rank: #3909 (+158)
Half → 25K
16:14 | 6:42/mi
30K· 18.64 mi
2:05:47
Rank: #3828 (+81)
25K → 30K
21:28 | 6:55/mi
20M
2:15:04
Rank: #3727 (+101)
30K → 20M
9:17 | 6:50/mi
21M
2:22:28
Rank: #3733 (-6)
20M → 21M
7:24 | 7:24/mi
35K· 21.75 mi
2:27:33
Rank: #3729 (+4)
21M → 35K
5:05 | 6:48/mi
23M
2:36:19
Rank: #3713 (+16)
35K → 23M
8:46 | 7:00/mi
24M
2:43:07
Rank: #3694 (+19)
23M → 24M
6:48 | 6:48/mi
40K· 24.85 mi
2:49:02
Rank: #3659 (+35)
24M → 40K
5:55 | 6:55/mi
25.2M
2:51:39
Rank: #3670 (-11)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:58:49
Rank: #3788 (-118)
25.2M → Finish
7:10 | 7:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:05
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:30:44
Pace6:55 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1421:136:5021:13
6:50
-
10K
6.21 mi10:44:0342:026:4620:49
6:42
-0:08
15K
9.32 mi11:04:401:02:396:4320:37
6:38
-0:04
20K
12.43 mi11:25:351:23:346:4320:55
6:44
+0:06
Half
13.11 mi11:30:061:28:056:434:31
6:37
-0:07
25K
15.53 mi11:46:201:44:196:4316:14
6:42
+0:05
30K
18.64 mi12:07:482:05:476:4521:28
6:55
+0:13
20M
20.00 mi12:17:052:15:046:459:17
6:50
-0:05
21M
21.00 mi12:24:292:22:286:477:24
7:24
+0:34
35K
21.75 mi12:29:342:27:336:475:05
6:48
-0:36
23M
23.00 mi12:38:202:36:196:488:46
7:00
+0:12
24M
24.00 mi12:45:082:43:076:486:48
6:48
-0:12
40K
24.85 mi12:51:032:49:026:485:55
6:55
+0:07
25.2M
25.20 mi12:53:402:51:396:492:37
7:35
+0:40
Finish
26.22 mi13:00:502:58:496:507:10
7:02
-0:33

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

6:37 /mi

Average Pace

6:50 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:48

94% of race

Time at Steady Pace

10:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:23:1421:136:5021:13
6:50
#4932
10K
6.21 mi10:44:0342:026:4620:49
6:42
#4637
15K
9.32 mi11:04:401:02:396:4320:37
6:38
#4229
20K
12.43 mi11:25:351:23:346:4320:55
6:44
#4113
Half
13.11 mi11:30:061:28:056:434:31
6:37
#4067
25K
15.53 mi11:46:201:44:196:4316:14
6:42
#3909
30K
18.64 mi12:07:482:05:476:4521:28
6:55
#3828
20M
20.00 mi12:17:052:15:046:459:17
6:50
#3727
21M
21.00 mi12:24:292:22:286:477:24
7:24
#3733
35K
21.75 mi12:29:342:27:336:475:05
6:48
#3729
23M
23.00 mi12:38:202:36:196:488:46
7:00
#3713
24M
24.00 mi12:45:082:43:076:486:48
6:48
#3694
40K
24.85 mi12:51:032:49:026:485:55
6:55
#3659
25.2M
25.20 mi12:53:402:51:396:492:37
7:35
#3670
Finish
26.22 mi13:00:502:58:496:507:10
7:02
#3788
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4932457845783580(Top 13%)3384(Top 22%)3384(Top 64%)
10K6.21 mi3.10 mi4637+2954325+2534325+2534321(Top 16%)4045(Top 27%)4045(Top 77%)
15K9.32 mi3.11 mi4229+4083963+3623963+3623580(Top 13%)3384(Top 22%)3384(Top 64%)
20K12.43 mi3.11 mi4113+1163860+1033860+1033822(Top 14%)3604(Top 24%)3604(Top 68%)
Half13.11 mi0.68 mi4067+463818+423818+423603(Top 14%)3411(Top 22%)3411(Top 65%)
25K15.53 mi2.42 mi3909+1583681+1373681+1373331(Top 13%)3163(Top 21%)3163(Top 60%)
30K18.64 mi3.11 mi3828+813610+713610+713721(Top 14%)3493(Top 23%)3493(Top 66%)
20M20.00 mi1.36 mi3727+1013518+923518+923038(Top 11%)2858(Top 19%)2858(Top 54%)
21M21.00 mi1.00 mi3733-63522-43522-44114(Top 15%)3783(Top 25%)3783(Top 72%)
35K21.75 mi0.75 mi3729+43516+63516+64139(Top 16%)3789(Top 25%)3789(Top 72%)
23M23.00 mi1.25 mi3713+163499+173499+173797(Top 14%)3504(Top 23%)3504(Top 66%)
24M24.00 mi1.00 mi3694+193479+203479+203647(Top 14%)3346(Top 22%)3346(Top 63%)
40K24.85 mi0.85 mi3659+353444+353444+353431(Top 13%)3132(Top 21%)3132(Top 59%)
25.2M25.20 mi0.35 mi3670-113452-83452-84271(Top 16%)3741(Top 25%)3741(Top 71%)
Finish26.22 mi1.02 mi3788-1183556-1043556-1045377(Top 20%)4516(Top 30%)4516(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3580

Males

3384

M18-39

3384

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4321

Males

4045

M18-39

4045

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3580

Males

3384

M18-39

3384

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3822

Males

3604

M18-39

3604

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3603

Males

3411

M18-39

3411

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3331

Males

3163

M18-39

3163

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3721

Males

3493

M18-39

3493

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3038

Males

2858

M18-39

2858

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4114

Males

3783

M18-39

3783

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4139

Males

3789

M18-39

3789

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3797

Males

3504

M18-39

3504

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3647

Males

3346

M18-39

3346

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3431

Males

3132

M18-39

3132

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4271

Males

3741

M18-39

3741

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5377

Males

4516

M18-39

4516

Passing Analysis

Category:
Athletes Passed
1776
Passed By
632
Net Change
+1144
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4932
5K → 10K38489+295#4932#4637
10K → 15K42820+408#4637#4229
15K → 20K15640+116#4229#4113
20K → Half515+46#4113#4067
Half → 25K17315+158#4067#3909
25K → 30K15473+81#3909#3828
30K → 20M11413+101#3828#3727
20M → 21M5864-6#3727#3733
21M → 35K2925+4#3733#3729
35K → 23M7357+16#3729#3713
23M → 24M5536+19#3713#3694
24M → 40K5924+35#3694#3659
40K → 25.2M1930-11#3659#3670
25.2M → Finish23141-118#3670#3788
TOTALS1776632+1144
📊

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