Boston Marathon logo
BOSTON MARATHON 2025

Alexander Pineiro

MA

Bib: 28900 M

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

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:27/mi
29:21
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:27/mi
58:43
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:48/mi
1:29:09
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
11:00/mi
2:03:19
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:23/mi
2:10:24
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
14:32/mi
2:45:38
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
18:46/mi
3:43:57
↑ 181↓ 1480.2%
138 ft elev
20M
24:40/mi
4:17:28
↑ 64↓ 500.2%
148 ft elev
21M
25:24/mi
4:42:52
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
13:05/mi
4:52:39
↑ 17↓ 861.7%
156 ft elev
23M
11:19/mi
5:06:49
↑ 23↓ 630.6%
116 ft elev
24M
12:05/mi
5:18:54
↓ 821.3%
34 ft elev
40K· 24.85 mi
15:20/mi
5:32:01
↓ 200.3%
20 ft elev
25.2M
14:21/mi
5:36:58
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:32/mi
5:46:41
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:24
Pace9:57 /mi
2nd Half
Distance13.11 mi
Time3:36:17
Pace16:30 /mi
📊Positive Split: 65.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2129:219:2729:21
9:27
-
10K
6.21 mi12:16:4358:439:2729:22
9:27
0:00
15K
9.32 mi12:47:091:29:099:3430:26
9:48
+0:21
20K
12.43 mi13:21:192:03:199:5534:10
11:00
+1:12
Half
13.11 mi13:28:242:10:249:577:05
10:23
-0:37
25K
15.53 mi14:03:382:45:3810:4035:14
14:32
+4:09
30K
18.64 mi15:01:573:43:5712:0158:19
18:46
+4:14
20M
20.00 mi15:35:284:17:2812:5233:31
24:40
+5:54
21M
21.00 mi16:00:524:42:5213:2825:24
25:24
+0:44
35K
21.75 mi16:10:394:52:3913:279:47
13:05
-12:19
23M
23.00 mi16:24:495:06:4913:2014:10
11:19
-1:46
24M
24.00 mi16:36:545:18:5413:1712:05
12:05
+0:46
40K
24.85 mi16:50:015:32:0113:2113:07
15:20
+3:15
25.2M
25.20 mi16:54:585:36:5813:224:57
14:21
-0:59
Finish
26.22 mi17:04:415:46:4113:149:43
9:32
-4:49

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

9:27 /mi

Average Pace

13:14 /mi

Slowest Pace

25:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:08:26

20% of race

Time at Steady Pace

2:27:54

43% of race

Time at Slower Pace

2:10:21

38% of race

Average Pace: 13:13 /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 mi11:47:2129:219:2729:21
9:27
#24058
10K
6.21 mi12:16:4358:439:2729:22
9:27
#24040
15K
9.32 mi12:47:091:29:099:3430:26
9:48
#24214
20K
12.43 mi13:21:192:03:199:5534:10
11:00
#24815
Half
13.11 mi13:28:242:10:249:577:05
10:23
#24856
25K
15.53 mi14:03:382:45:3810:4035:14
14:32
#25985
30K
18.64 mi15:01:573:43:5712:0158:19
18:46
#27301
20M
20.00 mi15:35:284:17:2812:5233:31
24:40
#27904
21M
21.00 mi16:00:524:42:5213:2825:24
25:24
#28171
35K
21.75 mi16:10:394:52:3913:279:47
13:05
#28155
23M
23.00 mi16:24:495:06:4913:2014:10
11:19
#28068
24M
24.00 mi16:36:545:18:5413:1712:05
12:05
#28019
40K
24.85 mi16:50:015:32:0113:2113:07
15:20
#28037
25.2M
25.20 mi16:54:585:36:5813:224:57
14:21
#28018
Finish
26.22 mi17:04:415:46:4113:149:43
9:32
#27922
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24058142711427124538(Top 86%)14498(Top 90%)14498(Top 257%)
10K6.21 mi3.10 mi24040+18142711427123987(Top 84%)14252(Top 88%)14252(Top 253%)
15K9.32 mi3.11 mi24214-17414355-8414355-8424538(Top 86%)14498(Top 90%)14498(Top 257%)
20K12.43 mi3.11 mi24815-60114621-26614621-26625988(Top 91%)15118(Top 94%)15118(Top 268%)
Half13.11 mi0.68 mi24856-4114637-1614637-1625603(Top 90%)14941(Top 93%)14941(Top 265%)
25K15.53 mi2.42 mi25985-112915132-49515132-49528107(Top 99%)15961(Top 99%)15961(Top 283%)
30K18.64 mi3.11 mi27301-131615646-51415646-51428385(Top 100%)16096(Top 100%)16096(Top 285%)
20M20.00 mi1.36 mi27904-60315897-25115897-25128398(Top 100%)16101(Top 100%)16101(Top 285%)
21M21.00 mi1.00 mi28171-26716000-10316000-10328394(Top 100%)16100(Top 100%)16100(Top 285%)
35K21.75 mi0.75 mi28155+1615988+1215988+1227044(Top 95%)15363(Top 95%)15363(Top 272%)
23M23.00 mi1.25 mi28068+8715957+3115957+3123912(Top 84%)13798(Top 86%)13798(Top 245%)
24M24.00 mi1.00 mi28019+4915931+2615931+2625777(Top 91%)14696(Top 91%)14696(Top 260%)
40K24.85 mi0.85 mi28037-1815934-315934-327917(Top 98%)15785(Top 98%)15785(Top 280%)
25.2M25.20 mi0.35 mi28018+1915924+1015924+1026622(Top 94%)15079(Top 94%)15079(Top 267%)
Finish26.22 mi1.02 mi27922+9615881+4315881+4321298(Top 75%)12439(Top 77%)12439(Top 220%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

24538

Males

14498

M18-39

14498

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23987

Males

14252

M18-39

14252

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

24538

Males

14498

M18-39

14498

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

25988

Males

15118

M18-39

15118

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25603

Males

14941

M18-39

14941

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

28107

Males

15961

M18-39

15961

25K→30K

15.5 - 18.6 mi

Top 100%
×9story building
+181ft-148ft

Overall

28385

Males

16096

M18-39

16096

30K→20M

18.6 - 20.0 mi

Top 100%
×5story building
+64ft-50ft

Overall

28398

Males

16101

M18-39

16101

20M→21M

20.0 - 21.0 mi

Top 100%
×8story building
+106ft-24ft

Overall

28394

Males

16100

M18-39

16100

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

27044

Males

15363

M18-39

15363

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23912

Males

13798

M18-39

13798

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25777

Males

14696

M18-39

14696

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

27917

Males

15785

M18-39

15785

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

26622

Males

15079

M18-39

15079

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21298

Males

12439

M18-39

12439

Passing Analysis

Category:
Athletes Passed
656
Passed By
4520
Net Change
-3864
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24058
5K → 10K246228+18#24058#24040
10K → 15K88262-174#24040#24214
15K → 20K27628-601#24214#24815
20K → Half1657-41#24815#24856
Half → 25K31132-1129#24856#25985
25K → 30K21318-1316#25985#27301
30K → 20M0603-603#27301#27904
20M → 21M1268-267#27904#28171
21M → 35K160+16#28171#28155
35K → 23M870+87#28155#28068
23M → 24M490+49#28068#28019
24M → 40K523-18#28019#28037
40K → 25.2M201+19#28037#28018
25.2M → Finish960+96#28018#27922
TOTALS6564520-3864
📊

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