Boston Marathon logo
BOSTON MARATHON 2023

Kevin Montalvo

Bib: 5498•M

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 44%
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
23:40
Rank: #10672
Start → 5K
23:40 | 7:37/mi
10K· 6.21 mi
45:31
Rank: #8611 (+2061)
5K → 10K
21:51 | 7:02/mi
15K· 9.32 mi
1:06:55
Rank: #7606 (+1005)
10K → 15K
21:24 | 6:53/mi
20K· 12.43 mi
1:29:03
Rank: #7312 (+294)
15K → 20K
22:08 | 7:07/mi
Half· 13.11 mi
1:33:57
Rank: #7319 (-7)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:52:03
Rank: #7455 (-136)
Half → 25K
18:06 | 7:28/mi
30K· 18.64 mi
2:15:34
Rank: #7439 (+16)
25K → 30K
23:31 | 7:34/mi
20M
2:25:58
Rank: #7422 (+17)
30K → 20M
10:24 | 7:39/mi
21M
2:33:59
Rank: #7407 (+15)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:39:15
Rank: #7325 (+82)
21M → 35K
5:16 | 7:02/mi
23M
2:48:57
Rank: #7320 (+5)
35K → 23M
9:42 | 7:45/mi
24M
2:57:08
Rank: #7483 (-163)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:04:22
Rank: #7676 (-193)
24M → 40K
7:14 | 8:28/mi
25.2M
3:07:24
Rank: #7739 (-63)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:15:20
Rank: #7830 (-91)
25.2M → Finish
7:56 | 7:47/mi

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
Time1:33:57
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:41:23
Pace7:44 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0823:407:3723:40
7:37
-
10K
6.21 mi11:37:5945:317:2021:51
7:02
-0:35
15K
9.32 mi11:59:231:06:557:1121:24
6:53
-0:09
20K
12.43 mi12:21:311:29:037:1022:08
7:07
+0:14
Half
13.11 mi12:26:251:33:577:104:54
7:11
+0:04
25K
15.53 mi12:44:311:52:037:1318:06
7:28
+0:17
30K
18.64 mi13:08:022:15:347:1623:31
7:34
+0:06
20M
20.00 mi13:18:262:25:587:1810:24
7:39
+0:05
21M
21.00 mi13:26:272:33:597:208:01
8:01
+0:22
35K
21.75 mi13:31:432:39:157:195:16
7:02
-0:59
23M
23.00 mi13:41:252:48:577:219:42
7:45
+0:43
24M
24.00 mi13:49:362:57:087:238:11
8:11
+0:26
40K
24.85 mi13:56:503:04:227:257:14
8:28
+0:17
25.2M
25.20 mi13:59:523:07:247:263:02
8:48
+0:20
Finish
26.22 mi14:07:483:15:207:277:56
7:47
-1:01

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

6:53 /mi

Average Pace

7:27 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:33

39% of race

Time at Steady Pace

1:33:19

48% of race

Time at Slower Pace

26:28

14% of race

Average Pace: 7:27 /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 mi11:16:0823:407:3723:40
7:37
#10672
10K
6.21 mi11:37:5945:317:2021:51
7:02
#8611
15K
9.32 mi11:59:231:06:557:1121:24
6:53
#7606
20K
12.43 mi12:21:311:29:037:1022:08
7:07
#7312
Half
13.11 mi12:26:251:33:577:104:54
7:11
#7319
25K
15.53 mi12:44:311:52:037:1318:06
7:28
#7455
30K
18.64 mi13:08:022:15:347:1623:31
7:34
#7439
20M
20.00 mi13:18:262:25:587:1810:24
7:39
#7422
21M
21.00 mi13:26:272:33:597:208:01
8:01
#7407
35K
21.75 mi13:31:432:39:157:195:16
7:02
#7325
23M
23.00 mi13:41:252:48:577:219:42
7:45
#7320
24M
24.00 mi13:49:362:57:087:238:11
8:11
#7483
40K
24.85 mi13:56:503:04:227:257:14
8:28
#7676
25.2M
25.20 mi13:59:523:07:247:263:02
8:48
#7739
Finish
26.22 mi14:07:483:15:207:277:56
7:47
#7830
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi10672848484845890(Top 22%)5378(Top 35%)5378(Top 102%)
10K6.21 mi3.10 mi8611+20617340+11447340+11447040(Top 26%)6268(Top 41%)6268(Top 119%)
15K9.32 mi3.11 mi7606+10056695+6456695+6455890(Top 22%)5378(Top 35%)5378(Top 102%)
20K12.43 mi3.11 mi7312+2946473+2226473+2226678(Top 25%)5971(Top 39%)5971(Top 113%)
Half13.11 mi0.68 mi7319-76477-46477-47709(Top 29%)6716(Top 44%)6716(Top 127%)
25K15.53 mi2.42 mi7455-1366567-906567-908500(Top 32%)7130(Top 47%)7130(Top 135%)
30K18.64 mi3.11 mi7439+166521+466521+467710(Top 29%)6518(Top 43%)6518(Top 123%)
20M20.00 mi1.36 mi7422+176490+316490+317821(Top 29%)6481(Top 43%)6481(Top 123%)
21M21.00 mi1.00 mi7407+156452+386452+387438(Top 28%)6142(Top 40%)6142(Top 116%)
35K21.75 mi0.75 mi7325+826390+626390+625578(Top 21%)4941(Top 33%)4941(Top 93%)
23M23.00 mi1.25 mi7320+56363+276363+278020(Top 30%)6419(Top 42%)6419(Top 121%)
24M24.00 mi1.00 mi7483-1636453-906453-9012448(Top 47%)8594(Top 57%)8594(Top 163%)
40K24.85 mi0.85 mi7676-1936565-1126565-11213041(Top 49%)8790(Top 58%)8790(Top 166%)
25.2M25.20 mi0.35 mi7739-636594-296594-2911212(Top 42%)7875(Top 52%)7875(Top 149%)
Finish26.22 mi1.02 mi7830-916632-386632-3810534(Top 40%)7558(Top 50%)7558(Top 143%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5890

Males

5378

M18-39

5378

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

7040

Males

6268

M18-39

6268

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5890

Males

5378

M18-39

5378

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

6678

Males

5971

M18-39

5971

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

7709

Males

6716

M18-39

6716

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8500

Males

7130

M18-39

7130

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7710

Males

6518

M18-39

6518

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

7821

Males

6481

M18-39

6481

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7438

Males

6142

M18-39

6142

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5578

Males

4941

M18-39

4941

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8020

Males

6419

M18-39

6419

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12448

Males

8594

M18-39

8594

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13041

Males

8790

M18-39

8790

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11212

Males

7875

M18-39

7875

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

10534

Males

7558

M18-39

7558

Passing Analysis

Category:
Athletes Passed
3994*
Passed By
1152
Net Change
+2842
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10672
5K → 10K2071*10+2061#10672#8611
10K → 15K10050+1005#8611#7606
15K → 20K30915+294#7606#7312
20K → Half1825-7#7312#7319
Half → 25K38174-136#7319#7455
25K → 30K148132+16#7455#7439
30K → 20M7356+17#7439#7422
20M → 21M7964+15#7422#7407
21M → 35K864+82#7407#7325
35K → 23M7873+5#7325#7320
23M → 24M23186-163#7320#7483
24M → 40K21214-193#7483#7676
40K → 25.2M1376-63#7676#7739
25.2M → Finish32123-91#7739#7830
TOTALS3994*1152+2842

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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