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BOSTON MARATHON 2023

Brett Guido

Bib: 5256•M

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Division (M18-39)
#0 / 5285
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:03
Rank: #4397
Start → 5K
21:03 | 6:47/mi
10K· 6.21 mi
41:48
Rank: #4240 (+157)
5K → 10K
20:45 | 6:41/mi
15K· 9.32 mi
1:02:40
Rank: #4245 (-5)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:23:34
Rank: #4110 (+135)
15K → 20K
20:54 | 6:44/mi
Half· 13.11 mi
1:28:10
Rank: #4134 (-24)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:44:22
Rank: #3943 (+191)
Half → 25K
16:12 | 6:41/mi
30K· 18.64 mi
2:05:12
Rank: #3583 (+360)
25K → 30K
20:50 | 6:42/mi
20M
2:14:21
Rank: #3431 (+152)
30K → 20M
9:09 | 6:44/mi
21M
2:21:26
Rank: #3324 (+107)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:26:19
Rank: #3279 (+45)
21M → 35K
4:53 | 6:32/mi
23M
2:34:45
Rank: #3188 (+91)
35K → 23M
8:26 | 6:44/mi
24M
2:41:19
Rank: #3124 (+64)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:47:03
Rank: #3050 (+74)
24M → 40K
5:44 | 6:42/mi
25.2M
2:49:29
Rank: #3015 (+35)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:55:57
Rank: #2914 (+101)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:10
Pace6:44 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:47
Pace6:42 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2521:036:4721:03
6:47
-
10K
6.21 mi10:44:1041:486:4420:45
6:41
-0:06
15K
9.32 mi11:05:021:02:406:4320:52
6:43
+0:02
20K
12.43 mi11:25:561:23:346:4320:54
6:44
+0:01
Half
13.11 mi11:30:321:28:106:444:36
6:45
+0:01
25K
15.53 mi11:46:441:44:226:4316:12
6:41
-0:04
30K
18.64 mi12:07:342:05:126:4320:50
6:42
+0:01
20M
20.00 mi12:16:432:14:216:439:09
6:44
+0:02
21M
21.00 mi12:23:482:21:266:447:05
7:05
+0:21
35K
21.75 mi12:28:412:26:196:444:53
6:32
-0:33
23M
23.00 mi12:37:072:34:456:448:26
6:44
+0:12
24M
24.00 mi12:43:412:41:196:436:34
6:34
-0:10
40K
24.85 mi12:49:252:47:036:435:44
6:42
+0:08
25.2M
25.20 mi12:51:512:49:296:442:26
7:03
+0:21
Finish
26.22 mi12:58:192:55:576:436:28
6:21
-0:42

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

6:21 /mi

Average Pace

6:43 /mi

Slowest Pace

7:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:26

95% of race

Time at Steady Pace

9:31

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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 mi10:23:2521:036:4721:03
6:47
#4397
10K
6.21 mi10:44:1041:486:4420:45
6:41
#4240
15K
9.32 mi11:05:021:02:406:4320:52
6:43
#4245
20K
12.43 mi11:25:561:23:346:4320:54
6:44
#4110
Half
13.11 mi11:30:321:28:106:444:36
6:45
#4134
25K
15.53 mi11:46:441:44:226:4316:12
6:41
#3943
30K
18.64 mi12:07:342:05:126:4320:50
6:42
#3583
20M
20.00 mi12:16:432:14:216:439:09
6:44
#3431
21M
21.00 mi12:23:482:21:266:447:05
7:05
#3324
35K
21.75 mi12:28:412:26:196:444:53
6:32
#3279
23M
23.00 mi12:37:072:34:456:448:26
6:44
#3188
24M
24.00 mi12:43:412:41:196:436:34
6:34
#3124
40K
24.85 mi12:49:252:47:036:435:44
6:42
#3050
25.2M
25.20 mi12:51:512:49:296:442:26
7:03
#3015
Finish
26.22 mi12:58:192:55:576:436:28
6:21
#2914
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4397410541054265(Top 16%)3995(Top 26%)3995(Top 76%)
10K6.21 mi3.10 mi4240+1573973+1323973+1324128(Top 16%)3872(Top 26%)3872(Top 73%)
15K9.32 mi3.11 mi4245-53977-43977-44265(Top 16%)3995(Top 26%)3995(Top 76%)
20K12.43 mi3.11 mi4110+1353857+1203857+1203766(Top 14%)3554(Top 23%)3554(Top 67%)
Half13.11 mi0.68 mi4134-243879-223879-224646(Top 17%)4308(Top 28%)4308(Top 82%)
25K15.53 mi2.42 mi3943+1913713+1663713+1663222(Top 12%)3070(Top 20%)3070(Top 58%)
30K18.64 mi3.11 mi3583+3603390+3233390+3232427(Top 9%)2311(Top 15%)2311(Top 44%)
20M20.00 mi1.36 mi3431+1523247+1433247+1432453(Top 9%)2328(Top 15%)2328(Top 44%)
21M21.00 mi1.00 mi3324+1073149+983149+982552(Top 10%)2410(Top 16%)2410(Top 46%)
35K21.75 mi0.75 mi3279+453105+443105+442574(Top 10%)2433(Top 16%)2433(Top 46%)
23M23.00 mi1.25 mi3188+913024+813024+812332(Top 9%)2193(Top 14%)2193(Top 41%)
24M24.00 mi1.00 mi3124+642962+622962+622391(Top 9%)2234(Top 15%)2234(Top 42%)
40K24.85 mi0.85 mi3050+742890+722890+722371(Top 9%)2201(Top 15%)2201(Top 42%)
25.2M25.20 mi0.35 mi3015+352859+312859+311944(Top 7%)1827(Top 12%)1827(Top 35%)
Finish26.22 mi1.02 mi2914+1012761+982761+981818(Top 7%)1702(Top 11%)1702(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4265

Males

3995

M18-39

3995

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4128

Males

3872

M18-39

3872

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4265

Males

3995

M18-39

3995

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3766

Males

3554

M18-39

3554

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4646

Males

4308

M18-39

4308

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3222

Males

3070

M18-39

3070

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2427

Males

2311

M18-39

2311

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2453

Males

2328

M18-39

2328

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2552

Males

2410

M18-39

2410

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2574

Males

2433

M18-39

2433

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2332

Males

2193

M18-39

2193

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2391

Males

2234

M18-39

2234

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2371

Males

2201

M18-39

2201

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1944

Males

1827

M18-39

1827

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1818

Males

1702

M18-39

1702

Passing Analysis

Category:
Athletes Passed
1914
Passed By
431
Net Change
+1483
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4397
5K → 10K294137+157#4397#4240
10K → 15K131136-5#4240#4245
15K → 20K17035+135#4245#4110
20K → Half1135-24#4110#4134
Half → 25K20312+191#4134#3943
25K → 30K3677+360#3943#3583
30K → 20M1586+152#3583#3431
20M → 21M11912+107#3431#3324
21M → 35K516+45#3324#3279
35K → 23M10615+91#3279#3188
23M → 24M7612+64#3188#3124
24M → 40K8511+74#3124#3050
40K → 25.2M372+35#3050#3015
25.2M → Finish1065+101#3015#2914
TOTALS1914431+1483
📊

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