Boston Marathon logo
BOSTON MARATHON 2023

Oscar Beltran

Bib: 2725•M

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
Masters (Masters Men)
#0 / 9891
Top 15%
Division (M50-54)
#0 / 2052
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:02
Rank: #4364
Start → 5K
6:46/mi
21:02 split
10K· 6.21 mi
41:43
Rank: #4123 (+241)
5K → 10K
6:39/mi
20:41 split
15K· 9.32 mi
1:02:41
Rank: #4271 (-148)
10K → 15K
6:45/mi
20:58 split
20K· 12.43 mi
1:23:53
Rank: #4347 (-76)
15K → 20K
6:49/mi
21:12 split
Half· 13.11 mi
1:28:28
Rank: #4353 (-6)
20K → Half
6:43/mi
4:35 split
25K· 15.53 mi
1:45:07
Rank: #4377 (-24)
Half → 25K
6:52/mi
16:39 split
30K· 18.64 mi
2:07:14
Rank: #4536 (-159)
25K → 30K
7:07/mi
22:07 split
20M
2:17:02
Rank: #4598 (-62)
30K → 20M
7:13/mi
9:48 split
21M
2:24:37
Rank: #4632 (-34)
20M → 21M
7:35/mi
7:35 split
35K· 21.75 mi
2:29:53
Rank: #4660 (-28)
21M → 35K
7:02/mi
5:16 split
23M
2:39:01
Rank: #4684 (-24)
35K → 23M
7:18/mi
9:08 split
24M
2:46:06
Rank: #4670 (+14)
23M → 24M
7:05/mi
7:05 split
40K· 24.85 mi
2:52:28
Rank: #4712 (-42)
24M → 40K
7:27/mi
6:22 split
25.2M
2:55:15
Rank: #4726 (-14)
40K → 25.2M
8:04/mi
2:47 split
Finish· 26.22 mi
3:02:58
Rank: #4828 (-102)
25.2M → Finish
7:34/mi
7:43 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
Time1:28:28
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:34:30
Pace7:13 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0221:026:4621:02
6:46
-
10K
6.21 mi10:42:4341:436:4320:41
6:39
-0:07
15K
9.32 mi11:03:411:02:416:4420:58
6:45
+0:06
20K
12.43 mi11:24:531:23:536:4521:12
6:49
+0:04
Half
13.11 mi11:29:281:28:286:454:35
6:43
-0:06
25K
15.53 mi11:46:071:45:076:4616:39
6:52
+0:09
30K
18.64 mi12:08:142:07:146:5022:07
7:07
+0:15
20M
20.00 mi12:18:022:17:026:519:48
7:13
+0:06
21M
21.00 mi12:25:372:24:376:537:35
7:35
+0:22
35K
21.75 mi12:30:532:29:536:545:16
7:02
-0:33
23M
23.00 mi12:40:012:39:016:559:08
7:18
+0:16
24M
24.00 mi12:47:062:46:066:557:05
7:05
-0:13
40K
24.85 mi12:53:282:52:286:566:22
7:27
+0:22
25.2M
25.20 mi12:56:152:55:156:572:47
8:04
+0:37
Finish
26.22 mi13:03:583:02:586:597:43
7:34
-0:30

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

6:39 /mi

Average Pace

6:59 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:07

57% of race

Time at Steady Pace

44:16

24% of race

Time at Slower Pace

33:35

18% of race

Average Pace: 6:59 /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 mi10:22:0221:026:4621:02
6:46
#4364
10K
6.21 mi10:42:4341:436:4320:41
6:39
#4123
15K
9.32 mi11:03:411:02:416:4420:58
6:45
#4271
20K
12.43 mi11:24:531:23:536:4521:12
6:49
#4347
Half
13.11 mi11:29:281:28:286:454:35
6:43
#4353
25K
15.53 mi11:46:071:45:076:4616:39
6:52
#4377
30K
18.64 mi12:08:142:07:146:5022:07
7:07
#4536
20M
20.00 mi12:18:022:17:026:519:48
7:13
#4598
21M
21.00 mi12:25:372:24:376:537:35
7:35
#4632
35K
21.75 mi12:30:532:29:536:545:16
7:02
#4660
23M
23.00 mi12:40:012:39:016:559:08
7:18
#4684
24M
24.00 mi12:47:062:46:066:557:05
7:05
#4670
40K
24.85 mi12:53:282:52:286:566:22
7:27
#4712
25.2M
25.20 mi12:56:152:55:156:572:47
8:04
#4726
Finish
26.22 mi13:03:583:02:586:597:43
7:34
#4828
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4364407540754594(Top 17%)4290(Top 28%)4290(Top 209%)
10K6.21 mi3.10 mi4123+2413873+2023873+2023954(Top 15%)3724(Top 25%)3724(Top 181%)
15K9.32 mi3.11 mi4271-1484000-1274000-1274594(Top 17%)4290(Top 28%)4290(Top 209%)
20K12.43 mi3.11 mi4347-764070-704070-704658(Top 17%)4336(Top 29%)4336(Top 211%)
Half13.11 mi0.68 mi4353-64076-64076-64551(Top 17%)4243(Top 28%)4243(Top 207%)
25K15.53 mi2.42 mi4377-244095-194095-194717(Top 18%)4380(Top 29%)4380(Top 213%)
30K18.64 mi3.11 mi4536-1594235-1404235-1405030(Top 19%)4621(Top 30%)4621(Top 225%)
20M20.00 mi1.36 mi4598-624287-524287-525146(Top 19%)4653(Top 31%)4653(Top 227%)
21M21.00 mi1.00 mi4632-344313-264313-264985(Top 19%)4463(Top 29%)4463(Top 217%)
35K21.75 mi0.75 mi4660-284339-264339-265525(Top 21%)4888(Top 32%)4888(Top 238%)
23M23.00 mi1.25 mi4684-244355-164355-165271(Top 20%)4658(Top 31%)4658(Top 227%)
24M24.00 mi1.00 mi4670+144344+114344+115080(Top 19%)4480(Top 30%)4480(Top 218%)
40K24.85 mi0.85 mi4712-424370-264370-266321(Top 24%)5220(Top 34%)5220(Top 254%)
25.2M25.20 mi0.35 mi4726-144379-94379-96814(Top 26%)5446(Top 36%)5446(Top 265%)
Finish26.22 mi1.02 mi4828-1024453-744453-749036(Top 34%)6753(Top 44%)6753(Top 329%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4594

Males

4290

M50-54

4290

5K→10K

3.1 - 6.2 mi

Top 15%
×5story building
+79ft-138ft

Overall

3954

Males

3724

M50-54

3724

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4594

Males

4290

M50-54

4290

15K→20K

9.3 - 12.4 mi

Top 17%
×5story building
+106ft-86ft

Overall

4658

Males

4336

M50-54

4336

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4551

Males

4243

M50-54

4243

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

4717

Males

4380

M50-54

4380

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

5030

Males

4621

M50-54

4621

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

5146

Males

4653

M50-54

4653

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

4985

Males

4463

M50-54

4463

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5525

Males

4888

M50-54

4888

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5271

Males

4658

M50-54

4658

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5080

Males

4480

M50-54

4480

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6321

Males

5220

M50-54

5220

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6814

Males

5446

M50-54

5446

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9036

Males

6753

M50-54

6753

Passing Analysis

Category:
Athletes Passed
977
Passed By
1441
Net Change
-464
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4364
5K → 10K352111+241#4364#4123
10K → 15K79227-148#4123#4271
15K → 20K74150-76#4271#4347
20K → Half1521-6#4347#4353
Half → 25K79103-24#4353#4377
25K → 30K75234-159#4377#4536
30K → 20M42104-62#4536#4598
20M → 21M4882-34#4598#4632
21M → 35K3361-28#4632#4660
35K → 23M6286-24#4660#4684
23M → 24M5541+14#4684#4670
24M → 40K2769-42#4670#4712
40K → 25.2M1630-14#4712#4726
25.2M → Finish20122-102#4726#4828
TOTALS9771441-464
📊

Passing Visuals

Category:
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