Boston Marathon logo
BOSTON MARATHON 2023

Nel Arnau Crosas

Bib: 1584•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M40-44)
#0 / 2241
Top 13%
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
6:15/mi
19:25
↑ 97↓ 3451.5%
10K· 6.21 mi
6:25/mi
39:21
↑ 79↓ 1380.4%
15K· 9.32 mi
6:50/mi
1:00:36
↑ 67↓ 78
20K· 12.43 mi
6:33/mi
1:20:58
↑ 106↓ 860.1%
Half· 13.11 mi
6:31/mi
1:25:25
↑ 19↓ 370.5%
25K· 15.53 mi
6:55/mi
1:42:11
↑ 66↓ 880.2%
30K· 18.64 mi
6:43/mi
2:03:04
↑ 181↓ 1480.2%
20M
6:34/mi
2:11:59
↑ 64↓ 500.2%
21M
6:46/mi
2:18:45
↑ 106↓ 241.6%
35K· 21.75 mi
6:32/mi
2:23:38
↑ 17↓ 861.7%
23M
6:42/mi
2:32:01
↑ 23↓ 630.6%
24M
6:27/mi
2:38:28
↓ 821.3%
40K· 24.85 mi
6:24/mi
2:43:56
↓ 200.3%
25.2M
6:43/mi
2:46:15
↑ 13↓ 160.2%
Finish· 26.22 mi
6:03/mi
2:52:25
↑ 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 HalfFaster
Distance13.11 mi
Time1:25:25
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:27:00
Pace6:38 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5119:256:1519:25
6:15
-
10K
6.21 mi10:39:4739:216:2019:56
6:25
+0:10
15K
9.32 mi11:01:021:00:366:3021:15
6:50
+0:25
20K
12.43 mi11:21:241:20:586:3120:22
6:33
-0:17
Half
13.11 mi11:25:511:25:256:314:27
6:31
-0:02
25K
15.53 mi11:42:371:42:116:3516:46
6:55
+0:24
30K
18.64 mi12:03:302:03:046:3620:53
6:43
-0:12
20M
20.00 mi12:12:252:11:596:368:55
6:34
-0:09
21M
21.00 mi12:19:112:18:456:366:46
6:46
+0:12
35K
21.75 mi12:24:042:23:386:364:53
6:32
-0:14
23M
23.00 mi12:32:272:32:016:378:23
6:42
+0:10
24M
24.00 mi12:38:542:38:286:366:27
6:27
-0:15
40K
24.85 mi12:44:222:43:566:365:28
6:24
-0:03
25.2M
25.20 mi12:46:412:46:156:362:19
6:43
+0:19
Finish
26.22 mi12:52:512:52:256:356:10
6:03
-0:40

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

6:03 /mi

Average Pace

6:35 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:03

56% of race

Time at Steady Pace

1:16:22

44% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:35 /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 mi10:19:5119:256:1519:25
6:15
#1263
10K
6.21 mi10:39:4739:216:2019:56
6:25
#1714
15K
9.32 mi11:01:021:00:366:3021:15
6:50
#2537
20K
12.43 mi11:21:241:20:586:3120:22
6:33
#2534
Half
13.11 mi11:25:511:25:256:314:27
6:31
#2551
25K
15.53 mi11:42:371:42:116:3516:46
6:55
#2851
30K
18.64 mi12:03:302:03:046:3620:53
6:43
#2758
20M
20.00 mi12:12:252:11:596:368:55
6:34
#2644
21M
21.00 mi12:19:112:18:456:366:46
6:46
#2523
35K
21.75 mi12:24:042:23:386:364:53
6:32
#2495
23M
23.00 mi12:32:272:32:016:378:23
6:42
#2437
24M
24.00 mi12:38:542:38:286:366:27
6:27
#2395
40K
24.85 mi12:44:222:43:566:365:28
6:24
#2324
25.2M
25.20 mi12:46:412:46:156:362:19
6:43
#2286
Finish
26.22 mi12:52:512:52:256:356:10
6:03
#2184
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1263119711975452(Top 20%)5021(Top 33%)5021(Top 224%)
10K6.21 mi3.10 mi1714-4511637-4401637-4402322(Top 9%)2223(Top 15%)2223(Top 99%)
15K9.32 mi3.11 mi2537-8232424-7872424-7875452(Top 20%)5021(Top 33%)5021(Top 224%)
20K12.43 mi3.11 mi2534+32425-12425-12587(Top 10%)2475(Top 16%)2475(Top 110%)
Half13.11 mi0.68 mi2551-172444-192444-192878(Top 11%)2753(Top 18%)2753(Top 123%)
25K15.53 mi2.42 mi2851-3002725-2812725-2815036(Top 19%)4653(Top 31%)4653(Top 208%)
30K18.64 mi3.11 mi2758+932636+892636+892506(Top 9%)2383(Top 16%)2383(Top 106%)
20M20.00 mi1.36 mi2644+1142526+1102526+1101698(Top 6%)1621(Top 11%)1621(Top 72%)
21M21.00 mi1.00 mi2523+1212416+1102416+1101324(Top 5%)1265(Top 8%)1265(Top 56%)
35K21.75 mi0.75 mi2495+282389+272389+272538(Top 10%)2397(Top 16%)2397(Top 107%)
23M23.00 mi1.25 mi2437+582332+572332+572159(Top 8%)2039(Top 13%)2039(Top 91%)
24M24.00 mi1.00 mi2395+422292+402292+401895(Top 7%)1781(Top 12%)1781(Top 79%)
40K24.85 mi0.85 mi2324+712224+682224+681199(Top 5%)1134(Top 7%)1134(Top 51%)
25.2M25.20 mi0.35 mi2286+382189+352189+35967(Top 4%)923(Top 6%)923(Top 41%)
Finish26.22 mi1.02 mi2184+1022093+962093+96867(Top 3%)831(Top 5%)831(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5452

Males

5021

M40-44

5021

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2322

Males

2223

M40-44

2223

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5452

Males

5021

M40-44

5021

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2587

Males

2475

M40-44

2475

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

2878

Males

2753

M40-44

2753

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5036

Males

4653

M40-44

4653

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2506

Males

2383

M40-44

2383

30K→20M

18.6 - 20.0 mi

Top 6%
×5story building
+64ft-50ft

Overall

1698

Males

1621

M40-44

1621

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1324

Males

1265

M40-44

1265

21M→35K

21.0 - 21.8 mi

Top 10%
×7story building
+17ft-86ft

Overall

2538

Males

2397

M40-44

2397

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2159

Males

2039

M40-44

2039

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

1895

Males

1781

M40-44

1781

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1199

Males

1134

M40-44

1134

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

967

Males

923

M40-44

923

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2story building
+22ft-21ft

Overall

867

Males

831

M40-44

831

Passing Analysis

Category:
Athletes Passed
802
Passed By
1723
Net Change
-921
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1263
5K → 10K4455-451#1263#1714
10K → 15K1824-823#1714#2537
15K → 20K6562+3#2537#2534
20K → Half724-17#2534#2551
Half → 25K5305-300#2551#2851
25K → 30K12027+93#2851#2758
30K → 20M1151+114#2758#2644
20M → 21M1210+121#2644#2523
21M → 35K357+28#2523#2495
35K → 23M646+58#2495#2437
23M → 24M5210+42#2437#2395
24M → 40K732+71#2395#2324
40K → 25.2M380+38#2324#2286
25.2M → Finish1020+102#2286#2184
TOTALS8021723-921
📊

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