Boston Marathon logo
BOSTON MARATHON 2023

Antonio Zaragoza

Bib: 13279•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 42%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 46%
Division (M50-54)
#0 / 2052
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:49/mi
24:17
↑ 97↓ 3451.5%
10K· 6.21 mi
7:46/mi
48:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:13:04
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:37:24
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:42:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
2:01:32
↑ 66↓ 880.2%
30K· 18.64 mi
8:09/mi
2:26:51
↑ 181↓ 1480.2%
20M
8:01/mi
2:37:44
↑ 64↓ 500.2%
21M
8:31/mi
2:46:15
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:51:50
↑ 17↓ 861.7%
23M
7:42/mi
3:01:29
↑ 23↓ 630.6%
24M
7:48/mi
3:09:17
↓ 821.3%
40K· 24.85 mi
7:40/mi
3:15:50
↓ 200.3%
25.2M
8:04/mi
3:18:37
↑ 13↓ 160.2%
Finish· 26.22 mi
7:30/mi
3:26:16
↑ 22↓ 21

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 Half⚖️ Balanced
Distance13.11 mi
Time1:42:42
Pace7:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:43:34
Pace7:54 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0424:177:4924:17
7:49
-
10K
6.21 mi11:17:1248:257:4824:08
7:46
-0:03
15K
9.32 mi11:41:511:13:047:5024:39
7:56
+0:10
20K
12.43 mi12:06:111:37:247:5024:20
7:50
-0:06
Half
13.11 mi12:11:291:42:427:505:18
7:46
-0:04
25K
15.53 mi12:30:192:01:327:4918:50
7:46
0:00
30K
18.64 mi12:55:382:26:517:5325:19
8:09
+0:23
20M
20.00 mi13:06:312:37:447:5310:53
8:01
-0:08
21M
21.00 mi13:15:022:46:157:558:31
8:31
+0:30
35K
21.75 mi13:20:372:51:507:545:35
7:28
-1:03
23M
23.00 mi13:30:163:01:297:539:39
7:42
+0:14
24M
24.00 mi13:38:043:09:177:537:48
7:48
+0:06
40K
24.85 mi13:44:373:15:507:536:33
7:40
-0:08
25.2M
25.20 mi13:47:243:18:377:532:47
8:04
+0:24
Finish
26.22 mi13:55:033:26:167:527:39
7:30
-0:34

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

7:28 /mi

Average Pace

7:52 /mi

Slowest Pace

8:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:45

96% of race

Time at Steady Pace

8:31

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:52 /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 mi10:53:0424:177:4924:17
7:49
#12489
10K
6.21 mi11:17:1248:257:4824:08
7:46
#12609
15K
9.32 mi11:41:511:13:047:5024:39
7:56
#13028
20K
12.43 mi12:06:111:37:247:5024:20
7:50
#12736
Half
13.11 mi12:11:291:42:427:505:18
7:46
#12708
25K
15.53 mi12:30:192:01:327:4918:50
7:46
#12377
30K
18.64 mi12:55:382:26:517:5325:19
8:09
#12279
20M
20.00 mi13:06:312:37:447:5310:53
8:01
#12099
21M
21.00 mi13:15:022:46:157:558:31
8:31
#12001
35K
21.75 mi13:20:372:51:507:545:35
7:28
#11857
23M
23.00 mi13:30:163:01:297:539:39
7:42
#11555
24M
24.00 mi13:38:043:09:177:537:48
7:48
#11477
40K
24.85 mi13:44:373:15:507:536:33
7:40
#11286
25.2M
25.20 mi13:47:243:18:377:532:47
8:04
#11183
Finish
26.22 mi13:55:033:26:167:527:39
7:30
#11055
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi124899318931813832(Top 52%)9825(Top 65%)9825(Top 479%)
10K6.21 mi3.10 mi12609-1209373-559373-5512824(Top 48%)9474(Top 62%)9474(Top 462%)
15K9.32 mi3.11 mi13028-4199532-1599532-15913832(Top 52%)9825(Top 65%)9825(Top 479%)
20K12.43 mi3.11 mi12736+2929394+1389394+13811992(Top 45%)9005(Top 59%)9005(Top 439%)
Half13.11 mi0.68 mi12708+289372+229372+2212370(Top 46%)9206(Top 61%)9206(Top 449%)
25K15.53 mi2.42 mi12377+3319203+1699203+16910844(Top 41%)8424(Top 56%)8424(Top 411%)
30K18.64 mi3.11 mi12279+989119+849119+8411977(Top 45%)8788(Top 58%)8788(Top 428%)
20M20.00 mi1.36 mi12099+1809024+959024+9510316(Top 39%)7929(Top 52%)7929(Top 386%)
21M21.00 mi1.00 mi12001+988973+518973+5110564(Top 40%)7897(Top 52%)7897(Top 385%)
35K21.75 mi0.75 mi11857+1448892+818892+818279(Top 31%)6680(Top 44%)6680(Top 326%)
23M23.00 mi1.25 mi11555+3028740+1528740+1527770(Top 29%)6295(Top 41%)6295(Top 307%)
24M24.00 mi1.00 mi11477+788684+568684+569781(Top 37%)7287(Top 48%)7287(Top 355%)
40K24.85 mi0.85 mi11286+1918570+1148570+1147713(Top 29%)6077(Top 40%)6077(Top 296%)
25.2M25.20 mi0.35 mi11183+1038508+628508+626921(Top 26%)5553(Top 37%)5553(Top 271%)
Finish26.22 mi1.02 mi11055+1288421+878421+878596(Top 32%)6526(Top 43%)6526(Top 318%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13832

Males

9825

M50-54

9825

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12824

Males

9474

M50-54

9474

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13832

Males

9825

M50-54

9825

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11992

Males

9005

M50-54

9005

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12370

Males

9206

M50-54

9206

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10844

Males

8424

M50-54

8424

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

11977

Males

8788

M50-54

8788

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10316

Males

7929

M50-54

7929

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10564

Males

7897

M50-54

7897

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8279

Males

6680

M50-54

6680

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7770

Males

6295

M50-54

6295

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9781

Males

7287

M50-54

7287

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7713

Males

6077

M50-54

6077

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6921

Males

5553

M50-54

5553

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8596

Males

6526

M50-54

6526

Passing Analysis

Category:
Athletes Passed
2645
Passed By
1211
Net Change
+1434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12489
5K → 10K247367-120#12489#12609
10K → 15K72491-419#12609#13028
15K → 20K33947+292#13028#12736
20K → Half5426+28#12736#12708
Half → 25K34615+331#12708#12377
25K → 30K251153+98#12377#12279
30K → 20M20121+180#12279#12099
20M → 21M13335+98#12099#12001
21M → 35K1462+144#12001#11857
35K → 23M3086+302#11857#11555
23M → 24M10426+78#11555#11477
24M → 40K1965+191#11477#11286
40K → 25.2M1030+103#11286#11183
25.2M → Finish14517+128#11183#11055
TOTALS26451211+1434
📊

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing