Boston Marathon logo
BOSTON MARATHON 2025

Cesar Arroyo

Bib: 6378•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 28%
Gender (Male)
#0 / 16105
Top 41%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:28
Rank: #4505
Start → 5K
20:28 | 6:35/mi
10K· 6.21 mi
40:59
Rank: #4470 (+35)
5K → 10K
20:31 | 6:36/mi
15K· 9.32 mi
1:02:08
Rank: #4933 (-463)
10K → 15K
21:09 | 6:48/mi
20K· 12.43 mi
1:23:02
Rank: #4836 (+97)
15K → 20K
20:54 | 6:44/mi
Half· 13.11 mi
1:27:38
Rank: #4875 (-39)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:47:56
Rank: #6914 (-2039)
Half → 25K
20:18 | 8:22/mi
30K· 18.64 mi
2:11:18
Rank: #6949 (-35)
25K → 30K
23:22 | 7:31/mi
20M
2:22:30
Rank: #7229 (-280)
30K → 20M
11:12 | 8:15/mi
21M
2:31:30
Rank: #7482 (-253)
20M → 21M
9:00 | 9:00/mi
35K· 21.75 mi
2:37:41
Rank: #7677 (-195)
21M → 35K
6:11 | 8:16/mi
23M
2:48:14
Rank: #7916 (-239)
35K → 23M
10:33 | 8:26/mi
24M
2:55:39
Rank: #7867 (+49)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
3:02:49
Rank: #8024 (-157)
24M → 40K
7:10 | 8:23/mi
25.2M
3:05:50
Rank: #8051 (-27)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:13:19
Rank: #8002 (+49)
25.2M → Finish
7:29 | 7:21/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
Time1:27:38
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:45:41
Pace8:04 /mi
📊Positive Split: 20.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0720:286:3520:28
6:35
-
10K
6.21 mi10:45:3840:596:3620:31
6:36
+0:01
15K
9.32 mi11:06:471:02:086:4021:09
6:48
+0:12
20K
12.43 mi11:27:411:23:026:4120:54
6:44
-0:04
Half
13.11 mi11:32:171:27:386:414:36
6:45
+0:01
25K
15.53 mi11:52:351:47:566:5720:18
8:22
+1:37
30K
18.64 mi12:15:572:11:187:0323:22
7:31
-0:51
20M
20.00 mi12:27:092:22:307:0711:12
8:15
+0:44
21M
21.00 mi12:36:092:31:307:139:00
9:00
+0:45
35K
21.75 mi12:42:202:37:417:156:11
8:16
-0:44
23M
23.00 mi12:52:532:48:147:1910:33
8:26
+0:10
24M
24.00 mi13:00:182:55:397:197:25
7:25
-1:01
40K
24.85 mi13:07:283:02:497:217:10
8:23
+0:58
25.2M
25.20 mi13:10:293:05:507:223:01
8:45
+0:22
Finish
26.22 mi13:17:583:13:197:237:29
7:21
-1:24

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

6:35 /mi

Average Pace

7:23 /mi

Slowest Pace

9:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:38

45% of race

Time at Steady Pace

38:16

20% of race

Time at Slower Pace

1:07:25

35% of race

Average Pace: 7:22 /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 mi10:25:0720:286:3520:28
6:35
#4505
10K
6.21 mi10:45:3840:596:3620:31
6:36
#4470
15K
9.32 mi11:06:471:02:086:4021:09
6:48
#4933
20K
12.43 mi11:27:411:23:026:4120:54
6:44
#4836
Half
13.11 mi11:32:171:27:386:414:36
6:45
#4875
25K
15.53 mi11:52:351:47:566:5720:18
8:22
#6914
30K
18.64 mi12:15:572:11:187:0323:22
7:31
#6949
20M
20.00 mi12:27:092:22:307:0711:12
8:15
#7229
21M
21.00 mi12:36:092:31:307:139:00
9:00
#7482
35K
21.75 mi12:42:202:37:417:156:11
8:16
#7677
23M
23.00 mi12:52:532:48:147:1910:33
8:26
#7916
24M
24.00 mi13:00:182:55:397:197:25
7:25
#7867
40K
24.85 mi13:07:283:02:497:217:10
8:23
#8024
25.2M
25.20 mi13:10:293:05:507:223:01
8:45
#8051
Finish
26.22 mi13:17:583:13:197:237:29
7:21
#8002
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4505423742376165(Top 22%)5595(Top 35%)5595(Top 99%)
10K6.21 mi3.10 mi4470+354203+344203+344517(Top 16%)4233(Top 26%)4233(Top 75%)
15K9.32 mi3.11 mi4933-4634602-3994602-3996165(Top 22%)5595(Top 35%)5595(Top 99%)
20K12.43 mi3.11 mi4836+974508+944508+944694(Top 17%)4356(Top 27%)4356(Top 77%)
Half13.11 mi0.68 mi4875-394543-354543-355684(Top 20%)5204(Top 32%)5204(Top 92%)
25K15.53 mi2.42 mi6914-20396191-16486191-164816353(Top 58%)10792(Top 67%)10792(Top 191%)
30K18.64 mi3.11 mi6949-356173+186173+187891(Top 28%)6518(Top 40%)6518(Top 116%)
20M20.00 mi1.36 mi7229-2806342-1696342-16912050(Top 42%)8540(Top 53%)8540(Top 151%)
21M21.00 mi1.00 mi7482-2536477-1356477-13513457(Top 47%)9071(Top 56%)9071(Top 161%)
35K21.75 mi0.75 mi7677-1956583-1066583-10613974(Top 49%)9259(Top 57%)9259(Top 164%)
23M23.00 mi1.25 mi7916-2396683-1006683-10012821(Top 45%)8606(Top 53%)8606(Top 153%)
24M24.00 mi1.00 mi7867+496618+656618+657129(Top 25%)5604(Top 35%)5604(Top 99%)
40K24.85 mi0.85 mi8024-1576684-666684-6612626(Top 44%)8332(Top 52%)8332(Top 148%)
25.2M25.20 mi0.35 mi8051-276695-116695-1110210(Top 36%)7034(Top 44%)7034(Top 125%)
Finish26.22 mi1.02 mi8002+496630+656630+658056(Top 28%)5941(Top 37%)5941(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6165

Males

5595

M18-39

5595

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4517

Males

4233

M18-39

4233

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6165

Males

5595

M18-39

5595

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4694

Males

4356

M18-39

4356

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5684

Males

5204

M18-39

5204

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

16353

Males

10792

M18-39

10792

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7891

Males

6518

M18-39

6518

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

12050

Males

8540

M18-39

8540

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

13457

Males

9071

M18-39

9071

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13974

Males

9259

M18-39

9259

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12821

Males

8606

M18-39

8606

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7129

Males

5604

M18-39

5604

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12626

Males

8332

M18-39

8332

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10210

Males

7034

M18-39

7034

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

8056

Males

5941

M18-39

5941

Passing Analysis

Category:
Athletes Passed
955
Passed By
4452
Net Change
-3497
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4505
5K → 10K174139+35#4505#4470
10K → 15K22485-463#4470#4933
15K → 20K17679+97#4933#4836
20K → Half1453-39#4836#4875
Half → 25K42043-2039#4875#6914
25K → 30K168203-35#6914#6949
30K → 20M40320-280#6949#7229
20M → 21M28281-253#7229#7482
21M → 35K18213-195#7482#7677
35K → 23M55294-239#7677#7916
23M → 24M9546+49#7916#7867
24M → 40K36193-157#7867#8024
40K → 25.2M2350-27#8024#8051
25.2M → Finish10253+49#8051#8002
TOTALS9554452-3497
📊

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