Boston Marathon logo
BOSTON MARATHON 2023

Alberto Perez

Bib: 9531•M

NJ

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
Masters (Masters Men)
#0 / 9891
Top 19%
Division (M55-59)
#0 / 1422
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:32
Rank: #5795
Start → 5K
21:32 | 6:56/mi
10K· 6.21 mi
42:34
Rank: #5430 (+365)
5K → 10K
21:02 | 6:46/mi
15K· 9.32 mi
1:03:49
Rank: #5446 (-16)
10K → 15K
21:15 | 6:50/mi
20K· 12.43 mi
1:25:28
Rank: #5540 (-94)
15K → 20K
21:39 | 6:58/mi
Half· 13.11 mi
1:30:09
Rank: #5561 (-21)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:47:27
Rank: #5695 (-134)
Half → 25K
17:18 | 7:08/mi
30K· 18.64 mi
2:10:15
Rank: #5733 (-38)
25K → 30K
22:48 | 7:20/mi
20M
2:20:19
Rank: #5742 (-9)
30K → 20M
10:04 | 7:24/mi
21M
2:28:17
Rank: #5773 (-31)
20M → 21M
7:58 | 7:58/mi
35K· 21.75 mi
2:33:32
Rank: #5742 (+31)
21M → 35K
5:15 | 7:01/mi
23M
2:42:42
Rank: #5657 (+85)
35K → 23M
9:10 | 7:19/mi
24M
2:49:50
Rank: #5599 (+58)
23M → 24M
7:08 | 7:08/mi
40K· 24.85 mi
2:56:10
Rank: #5574 (+25)
24M → 40K
6:20 | 7:24/mi
25.2M
2:58:54
Rank: #5557 (+17)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:06:20
Rank: #5544 (+13)
25.2M → Finish
7:26 | 7:18/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
Time1:30:09
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:36:11
Pace7:20 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3521:326:5621:32
6:56
-
10K
6.21 mi11:08:3742:346:5121:02
6:46
-0:10
15K
9.32 mi11:29:521:03:496:5121:15
6:50
+0:04
20K
12.43 mi11:51:311:25:286:5321:39
6:58
+0:08
Half
13.11 mi11:56:121:30:096:534:41
6:52
-0:06
25K
15.53 mi12:13:301:47:276:5517:18
7:08
+0:16
30K
18.64 mi12:36:182:10:156:5922:48
7:20
+0:12
20M
20.00 mi12:46:222:20:197:0110:04
7:24
+0:04
21M
21.00 mi12:54:202:28:177:047:58
7:58
+0:34
35K
21.75 mi12:59:352:33:327:045:15
7:01
-0:57
23M
23.00 mi13:08:452:42:427:049:10
7:19
+0:18
24M
24.00 mi13:15:532:49:507:057:08
7:08
-0:11
40K
24.85 mi13:22:132:56:107:056:20
7:24
+0:16
25.2M
25.20 mi13:24:572:58:547:062:44
7:56
+0:32
Finish
26.22 mi13:32:233:06:207:077:26
7:18
-0:38

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

6:46 /mi

Average Pace

7:07 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:38

94% of race

Time at Steady Pace

10:42

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:06 /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 mi10:47:3521:326:5621:32
6:56
#5795
10K
6.21 mi11:08:3742:346:5121:02
6:46
#5430
15K
9.32 mi11:29:521:03:496:5121:15
6:50
#5446
20K
12.43 mi11:51:311:25:286:5321:39
6:58
#5540
Half
13.11 mi11:56:121:30:096:534:41
6:52
#5561
25K
15.53 mi12:13:301:47:276:5517:18
7:08
#5695
30K
18.64 mi12:36:182:10:156:5922:48
7:20
#5733
20M
20.00 mi12:46:222:20:197:0110:04
7:24
#5742
21M
21.00 mi12:54:202:28:177:047:58
7:58
#5773
35K
21.75 mi12:59:352:33:327:045:15
7:01
#5742
23M
23.00 mi13:08:452:42:427:049:10
7:19
#5657
24M
24.00 mi13:15:532:49:507:057:08
7:08
#5599
40K
24.85 mi13:22:132:56:107:056:20
7:24
#5574
25.2M
25.20 mi13:24:572:58:547:062:44
7:56
#5557
Finish
26.22 mi13:32:233:06:207:077:26
7:18
#5544
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi5795531953195477(Top 21%)5046(Top 33%)5046(Top 355%)
10K6.21 mi3.10 mi5430+3655015+3045015+3045001(Top 19%)4633(Top 31%)4633(Top 326%)
15K9.32 mi3.11 mi5446-165033-185033-185477(Top 21%)5046(Top 33%)5046(Top 355%)
20K12.43 mi3.11 mi5540-945109-765109-765777(Top 22%)5290(Top 35%)5290(Top 372%)
Half13.11 mi0.68 mi5561-215132-235132-235752(Top 22%)5284(Top 35%)5284(Top 372%)
25K15.53 mi2.42 mi5695-1345238-1065238-1066298(Top 24%)5646(Top 37%)5646(Top 397%)
30K18.64 mi3.11 mi5733-385257-195257-196236(Top 23%)5538(Top 36%)5538(Top 389%)
20M20.00 mi1.36 mi5742-95255+25255+26199(Top 23%)5440(Top 36%)5440(Top 383%)
21M21.00 mi1.00 mi5773-315269-145269-147097(Top 27%)5913(Top 39%)5913(Top 416%)
35K21.75 mi0.75 mi5742+315244+255244+255435(Top 20%)4831(Top 32%)4831(Top 340%)
23M23.00 mi1.25 mi5657+855161+835161+835419(Top 20%)4772(Top 31%)4772(Top 336%)
24M24.00 mi1.00 mi5599+585100+615100+615371(Top 20%)4696(Top 31%)4696(Top 330%)
40K24.85 mi0.85 mi5574+255076+245076+246109(Top 23%)5083(Top 33%)5083(Top 357%)
25.2M25.20 mi0.35 mi5557+175056+205056+206022(Top 23%)4953(Top 33%)4953(Top 348%)
Finish26.22 mi1.02 mi5544+135035+215035+217055(Top 27%)5594(Top 37%)5594(Top 393%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5477

Males

5046

M55-59

5046

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5001

Males

4633

M55-59

4633

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5477

Males

5046

M55-59

5046

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5777

Males

5290

M55-59

5290

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5752

Males

5284

M55-59

5284

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6298

Males

5646

M55-59

5646

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6236

Males

5538

M55-59

5538

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6199

Males

5440

M55-59

5440

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7097

Males

5913

M55-59

5913

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5435

Males

4831

M55-59

4831

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5419

Males

4772

M55-59

4772

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5371

Males

4696

M55-59

4696

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6109

Males

5083

M55-59

5083

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6022

Males

4953

M55-59

4953

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7055

Males

5594

M55-59

5594

Passing Analysis

Category:
Athletes Passed
1253
Passed By
1002
Net Change
+251
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5795
5K → 10K43065+365#5795#5430
10K → 15K117133-16#5430#5446
15K → 20K74168-94#5446#5540
20K → Half1233-21#5540#5561
Half → 25K42176-134#5561#5695
25K → 30K113151-38#5695#5733
30K → 20M5362-9#5733#5742
20M → 21M4879-31#5742#5773
21M → 35K4312+31#5773#5742
35K → 23M11126+85#5742#5657
23M → 24M7416+58#5657#5599
24M → 40K5025+25#5599#5574
40K → 25.2M2912+17#5574#5557
25.2M → Finish5744+13#5557#5544
TOTALS12531002+251
📊

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