Boston Marathon logo
BOSTON MARATHON 2023

Arthur Gontijo

Bib: 1284•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 22%
Division (M18-39)
#0 / 5285
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:28
Rank: #1326
Start → 5K
19:28 | 6:16/mi
10K· 6.21 mi
38:42
Rank: #1301 (+25)
5K → 10K
19:14 | 6:11/mi
15K· 9.32 mi
58:14
Rank: #1367 (-66)
10K → 15K
19:32 | 6:17/mi
20K· 12.43 mi
1:18:15
Rank: #1511 (-144)
15K → 20K
20:01 | 6:27/mi
Half· 13.11 mi
1:22:39
Rank: #1563 (-52)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:38:38
Rank: #1701 (-138)
Half → 25K
15:59 | 6:36/mi
30K· 18.64 mi
2:00:09
Rank: #1938 (-237)
25K → 30K
21:31 | 6:56/mi
20M
2:09:42
Rank: #2072 (-134)
30K → 20M
9:33 | 7:02/mi
21M
2:17:43
Rank: #2290 (-218)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:23:20
Rank: #2434 (-144)
21M → 35K
5:37 | 7:30/mi
23M
2:33:22
Rank: #2773 (-339)
35K → 23M
10:02 | 8:01/mi
24M
2:41:11
Rank: #3083 (-310)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
2:47:49
Rank: #3284 (-201)
24M → 40K
6:38 | 7:45/mi
25.2M
2:50:39
Rank: #3350 (-66)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
2:58:01
Rank: #3495 (-145)
25.2M → Finish
7:22 | 7:14/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
Time1:22:39
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:35:22
Pace7:16 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5719:286:1619:28
6:16
-
10K
6.21 mi10:39:1138:426:1419:14
6:11
-0:05
15K
9.32 mi10:58:4358:146:1519:32
6:17
+0:06
20K
12.43 mi11:18:441:18:156:1820:01
6:27
+0:10
Half
13.11 mi11:23:081:22:396:184:24
6:27
0:00
25K
15.53 mi11:39:071:38:386:2115:59
6:36
+0:09
30K
18.64 mi12:00:382:00:096:2721:31
6:56
+0:20
20M
20.00 mi12:10:112:09:426:299:33
7:02
+0:06
21M
21.00 mi12:18:122:17:436:338:01
8:01
+0:59
35K
21.75 mi12:23:492:23:206:355:37
7:30
-0:31
23M
23.00 mi12:33:512:33:226:4010:02
8:01
+0:31
24M
24.00 mi12:41:402:41:116:437:49
7:49
-0:12
40K
24.85 mi12:48:182:47:496:456:38
7:45
-0:04
25.2M
25.20 mi12:51:082:50:396:462:50
8:13
+0:28
Finish
26.22 mi12:58:302:58:016:487:22
7:14
-0:59

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

6:11 /mi

Average Pace

6:48 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:38

55% of race

Time at Steady Pace

38:26

22% of race

Time at Slower Pace

40:57

23% of race

Average Pace: 6:47 /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 mi10:19:5719:286:1619:28
6:16
#1326
10K
6.21 mi10:39:1138:426:1419:14
6:11
#1301
15K
9.32 mi10:58:4358:146:1519:32
6:17
#1367
20K
12.43 mi11:18:441:18:156:1820:01
6:27
#1511
Half
13.11 mi11:23:081:22:396:184:24
6:27
#1563
25K
15.53 mi11:39:071:38:386:2115:59
6:36
#1701
30K
18.64 mi12:00:382:00:096:2721:31
6:56
#1938
20M
20.00 mi12:10:112:09:426:299:33
7:02
#2072
21M
21.00 mi12:18:122:17:436:338:01
8:01
#2290
35K
21.75 mi12:23:492:23:206:355:37
7:30
#2434
23M
23.00 mi12:33:512:33:226:4010:02
8:01
#2773
24M
24.00 mi12:41:402:41:116:437:49
7:49
#3083
40K
24.85 mi12:48:182:47:496:456:38
7:45
#3284
25.2M
25.20 mi12:51:082:50:396:462:50
8:13
#3350
Finish
26.22 mi12:58:302:58:016:487:22
7:14
#3495
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1326126012601607(Top 6%)1535(Top 10%)1535(Top 29%)
10K6.21 mi3.10 mi1301+251236+241236+241333(Top 5%)1270(Top 8%)1270(Top 24%)
15K9.32 mi3.11 mi1367-661302-661302-661607(Top 6%)1535(Top 10%)1535(Top 29%)
20K12.43 mi3.11 mi1511-1441443-1411443-1412009(Top 8%)1928(Top 13%)1928(Top 36%)
Half13.11 mi0.68 mi1563-521494-511494-512522(Top 9%)2421(Top 16%)2421(Top 46%)
25K15.53 mi2.42 mi1701-1381629-1351629-1352673(Top 10%)2559(Top 17%)2559(Top 48%)
30K18.64 mi3.11 mi1938-2371855-2261855-2263820(Top 14%)3579(Top 24%)3579(Top 68%)
20M20.00 mi1.36 mi2072-1341986-1311986-1314167(Top 16%)3846(Top 25%)3846(Top 73%)
21M21.00 mi1.00 mi2290-2182194-2082194-2087399(Top 28%)6103(Top 40%)6103(Top 115%)
35K21.75 mi0.75 mi2434-1442331-1372331-1378528(Top 32%)6802(Top 45%)6802(Top 129%)
23M23.00 mi1.25 mi2773-3392646-3152646-3159798(Top 37%)7366(Top 49%)7366(Top 139%)
24M24.00 mi1.00 mi3083-3102923-2772923-2779862(Top 37%)7308(Top 48%)7308(Top 138%)
40K24.85 mi0.85 mi3284-2013106-1833106-1838315(Top 31%)6421(Top 42%)6421(Top 121%)
25.2M25.20 mi0.35 mi3350-663166-603166-607669(Top 29%)5945(Top 39%)5945(Top 112%)
Finish26.22 mi1.02 mi3495-1453291-1253291-1256587(Top 25%)5298(Top 35%)5298(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1607

Males

1535

M18-39

1535

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1333

Males

1270

M18-39

1270

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1607

Males

1535

M18-39

1535

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2009

Males

1928

M18-39

1928

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2522

Males

2421

M18-39

2421

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2673

Males

2559

M18-39

2559

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3820

Males

3579

M18-39

3579

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4167

Males

3846

M18-39

3846

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7399

Males

6103

M18-39

6103

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8528

Males

6802

M18-39

6802

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9798

Males

7366

M18-39

7366

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9862

Males

7308

M18-39

7308

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8315

Males

6421

M18-39

6421

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7669

Males

5945

M18-39

5945

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6587

Males

5298

M18-39

5298

Passing Analysis

Category:
Athletes Passed
212
Passed By
2381
Net Change
-2169
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1326
5K → 10K9166+25#1326#1301
10K → 15K2490-66#1301#1367
15K → 20K14158-144#1367#1511
20K → Half153-52#1511#1563
Half → 25K9147-138#1563#1701
25K → 30K15252-237#1701#1938
30K → 20M13147-134#1938#2072
20M → 21M3221-218#2072#2290
21M → 35K6150-144#2290#2434
35K → 23M4343-339#2434#2773
23M → 24M3313-310#2773#3083
24M → 40K6207-201#3083#3284
40K → 25.2M773-66#3284#3350
25.2M → Finish16161-145#3350#3495
TOTALS2122381-2169
📊

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