Boston Marathon logo
BOSTON MARATHON 2023

Michael Rezendes

Bib: 25467•M

MA

0:00
0:00
/ mi
Be the first to cheer!
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
34:27
Rank: #25804
Start → 5K
11:05/mi
34:27 split
10K· 6.21 mi
1:07:11
Rank: #25293 (+511)
5K → 10K
10:32/mi
32:44 split
15K· 9.32 mi
1:38:42
Rank: #24782 (+511)
10K → 15K
10:09/mi
31:31 split
20K· 12.43 mi
2:09:37
Rank: #24287 (+495)
15K → 20K
9:57/mi
30:55 split
Half· 13.11 mi
2:16:00
Rank: #24151 (+136)
20K → Half
9:21/mi
6:23 split
25K· 15.53 mi
2:39:24
Rank: #23700 (+451)
Half → 25K
9:39/mi
23:24 split
30K· 18.64 mi
3:10:58
Rank: #23331 (+369)
25K → 30K
10:10/mi
31:34 split
20M
3:24:28
Rank: #23132 (+199)
30K → 20M
9:56/mi
13:30 split
21M
3:35:36
Rank: #23025 (+107)
20M → 21M
11:08/mi
11:08 split
35K· 21.75 mi
3:43:45
Rank: #23030 (-5)
21M → 35K
10:54/mi
8:09 split
23M
3:57:56
Rank: #23014 (+16)
35K → 23M
11:20/mi
14:11 split
24M
4:09:27
Rank: #23059 (-45)
23M → 24M
11:31/mi
11:31 split
40K· 24.85 mi
4:19:10
Rank: #23051 (+8)
24M → 40K
11:22/mi
9:43 split
25.2M
4:23:29
Rank: #23061 (-10)
40K → 25.2M
12:31/mi
4:19 split
Finish· 26.22 mi
4:34:26
Rank: #23067 (-6)
25.2M → Finish
10:45/mi
10:57 split

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:00
Pace10:22 /mi
2nd Half
Distance13.11 mi
Time2:18:26
Pace10:34 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5234:2711:0534:27
11:05
-
10K
6.21 mi12:28:361:07:1110:4932:44
10:32
-0:33
15K
9.32 mi13:00:071:38:4210:3531:31
10:09
-0:23
20K
12.43 mi13:31:022:09:3710:2630:55
9:57
-0:12
Half
13.11 mi13:37:252:16:0010:226:23
9:21
-0:36
25K
15.53 mi14:00:492:39:2410:1623:24
9:39
+0:18
30K
18.64 mi14:32:233:10:5810:1531:34
10:10
+0:31
20M
20.00 mi14:45:533:24:2810:1313:30
9:56
-0:14
21M
21.00 mi14:57:013:35:3610:1611:08
11:08
+1:12
35K
21.75 mi15:05:103:43:4510:178:09
10:54
-0:14
23M
23.00 mi15:19:213:57:5610:2114:11
11:20
+0:26
24M
24.00 mi15:30:524:09:2710:2411:31
11:31
+0:11
40K
24.85 mi15:40:354:19:1010:269:43
11:22
-0:09
25.2M
25.20 mi15:44:544:23:2910:274:19
12:31
+1:09
Finish
26.22 mi15:55:514:34:2610:2810:57
10:45
-1:46

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

9:21 /mi

Average Pace

10:28 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:17

50% of race

Time at Steady Pace

1:37:25

35% of race

Time at Slower Pace

39:44

14% of race

Average Pace: 10:28 /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 mi11:55:5234:2711:0534:27
11:05
#25804
10K
6.21 mi12:28:361:07:1110:4932:44
10:32
#25293
15K
9.32 mi13:00:071:38:4210:3531:31
10:09
#24782
20K
12.43 mi13:31:022:09:3710:2630:55
9:57
#24287
Half
13.11 mi13:37:252:16:0010:226:23
9:21
#24151
25K
15.53 mi14:00:492:39:2410:1623:24
9:39
#23700
30K
18.64 mi14:32:233:10:5810:1531:34
10:10
#23331
20M
20.00 mi14:45:533:24:2810:1313:30
9:56
#23132
21M
21.00 mi14:57:013:35:3610:1611:08
11:08
#23025
35K
21.75 mi15:05:103:43:4510:178:09
10:54
#23030
23M
23.00 mi15:19:213:57:5610:2114:11
11:20
#23014
24M
24.00 mi15:30:524:09:2710:2411:31
11:31
#23059
40K
24.85 mi15:40:354:19:1010:269:43
11:22
#23051
25.2M
25.20 mi15:44:544:23:2910:274:19
12:31
#23061
Finish
26.22 mi15:55:514:34:2610:2810:57
10:45
#23067
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25804148561485623770(Top 89%)13985(Top 92%)13985(Top 265%)
10K6.21 mi3.10 mi25293+51114679+17714679+17724731(Top 93%)14414(Top 95%)14414(Top 273%)
15K9.32 mi3.11 mi24782+51114433+24614433+24623770(Top 89%)13985(Top 92%)13985(Top 265%)
20K12.43 mi3.11 mi24287+49514210+22314210+22322786(Top 86%)13525(Top 89%)13525(Top 256%)
Half13.11 mi0.68 mi24151+13614148+6214148+6221688(Top 81%)13051(Top 86%)13051(Top 247%)
25K15.53 mi2.42 mi23700+45113941+20713941+20721301(Top 80%)12842(Top 85%)12842(Top 243%)
30K18.64 mi3.11 mi23331+36913752+18913752+18921442(Top 81%)12823(Top 84%)12823(Top 243%)
20M20.00 mi1.36 mi23132+19913647+10513647+10520287(Top 76%)12254(Top 81%)12254(Top 232%)
21M21.00 mi1.00 mi23025+10713585+6213585+6221102(Top 79%)12570(Top 83%)12570(Top 238%)
35K21.75 mi0.75 mi23030-513581+413581+423111(Top 87%)13437(Top 89%)13437(Top 254%)
23M23.00 mi1.25 mi23014+1613559+2213559+2222948(Top 86%)13366(Top 88%)13366(Top 253%)
24M24.00 mi1.00 mi23059-4513568-913568-923886(Top 90%)13762(Top 91%)13762(Top 260%)
40K24.85 mi0.85 mi23051+813558+1013558+1022998(Top 86%)13319(Top 88%)13319(Top 252%)
25.2M25.20 mi0.35 mi23061-1013563-513563-523297(Top 88%)13451(Top 89%)13451(Top 255%)
Finish26.22 mi1.02 mi23067-613567-413567-423484(Top 88%)13567(Top 89%)13567(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23770

Males

13985

M18-39

13985

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24731

Males

14414

M18-39

14414

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23770

Males

13985

M18-39

13985

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22786

Males

13525

M18-39

13525

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

21688

Males

13051

M18-39

13051

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21301

Males

12842

M18-39

12842

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

21442

Males

12823

M18-39

12823

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20287

Males

12254

M18-39

12254

20M→21M

20.0 - 21.0 mi

Top 79%
×8stories
+106ft-24ft

Overall

21102

Males

12570

M18-39

12570

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23111

Males

13437

M18-39

13437

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22948

Males

13366

M18-39

13366

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

23886

Males

13762

M18-39

13762

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22998

Males

13319

M18-39

13319

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23297

Males

13451

M18-39

13451

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

23484

Males

13567

M18-39

13567

Passing Analysis

Category:
Athletes Passed
3002
Passed By
265
Net Change
+2737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25804
5K → 10K5198+511#25804#25293
10K → 15K5132+511#25293#24782
15K → 20K4950+495#24782#24287
20K → Half1360+136#24287#24151
Half → 25K4510+451#24151#23700
25K → 30K3723+369#23700#23331
30K → 20M2001+199#23331#23132
20M → 21M1136+107#23132#23025
21M → 35K2631-5#23025#23030
35K → 23M6448+16#23030#23014
23M → 24M2873-45#23014#23059
24M → 40K4133+8#23059#23051
40K → 25.2M919-10#23051#23061
25.2M → Finish3541-6#23061#23067
TOTALS3002265+2737
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing