Boston Marathon logo
BOSTON MARATHON 2025

Alvaro Guillen

Bib: 1743•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Division (M18-39)
#0 / 5642
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:24
Rank: #2108
Start → 5K
6:15/mi
19:24 split
10K· 6.21 mi
38:36
Rank: #1940 (+168)
5K → 10K
6:11/mi
19:12 split
15K· 9.32 mi
57:38
Rank: #1776 (+164)
10K → 15K
6:08/mi
19:02 split
20K· 12.43 mi
1:16:47
Rank: #1670 (+106)
15K → 20K
6:10/mi
19:09 split
Half· 13.11 mi
1:20:56
Rank: #1645 (+25)
20K → Half
6:05/mi
4:09 split
25K· 15.53 mi
1:36:06
Rank: #1629 (+16)
Half → 25K
6:15/mi
15:10 split
30K· 18.64 mi
1:56:10
Rank: #1623 (+6)
25K → 30K
6:28/mi
20:04 split
20M
2:05:29
Rank: #1714 (-91)
30K → 20M
6:51/mi
9:19 split
21M
2:12:34
Rank: #1727 (-13)
20M → 21M
7:05/mi
7:05 split
35K· 21.75 mi
2:17:30
Rank: #1750 (-23)
21M → 35K
6:36/mi
4:56 split
23M
2:26:17
Rank: #1822 (-72)
35K → 23M
7:01/mi
8:47 split
24M
2:33:37
Rank: #1973 (-151)
23M → 24M
7:20/mi
7:20 split
40K· 24.85 mi
2:40:22
Rank: #2163 (-190)
24M → 40K
7:54/mi
6:45 split
25.2M
2:43:16
Rank: #2239 (-76)
40K → 25.2M
8:25/mi
2:54 split
Finish· 26.22 mi
2:50:29
Rank: #2347 (-108)
25.2M → Finish
7:05/mi
7:13 split

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
Time1:20:56
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:29:33
Pace6:50 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5419:246:1519:24
6:15
-
10K
6.21 mi10:39:0638:366:1319:12
6:11
-0:04
15K
9.32 mi10:58:0857:386:1119:02
6:08
-0:03
20K
12.43 mi11:17:171:16:476:1119:09
6:10
+0:02
Half
13.11 mi11:21:261:20:566:104:09
6:05
-0:05
25K
15.53 mi11:36:361:36:066:1115:10
6:15
+0:10
30K
18.64 mi11:56:401:56:106:1420:04
6:28
+0:13
20M
20.00 mi12:05:592:05:296:169:19
6:51
+0:23
21M
21.00 mi12:13:042:12:346:197:05
7:05
+0:14
35K
21.75 mi12:18:002:17:306:194:56
6:36
-0:29
23M
23.00 mi12:26:472:26:176:228:47
7:01
+0:25
24M
24.00 mi12:34:072:33:376:247:20
7:20
+0:19
40K
24.85 mi12:40:522:40:226:276:45
7:54
+0:34
25.2M
25.20 mi12:43:462:43:166:292:54
8:25
+0:31
Finish
26.22 mi12:50:592:50:296:307:13
7:05
-1:20

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

6:05 /mi

Average Pace

6:30 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:06

56% of race

Time at Steady Pace

34:19

20% of race

Time at Slower Pace

40:04

24% of race

Average Pace: 6:30 /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 mi10:19:5419:246:1519:24
6:15
#2108
10K
6.21 mi10:39:0638:366:1319:12
6:11
#1940
15K
9.32 mi10:58:0857:386:1119:02
6:08
#1776
20K
12.43 mi11:17:171:16:476:1119:09
6:10
#1670
Half
13.11 mi11:21:261:20:566:104:09
6:05
#1645
25K
15.53 mi11:36:361:36:066:1115:10
6:15
#1629
30K
18.64 mi11:56:401:56:106:1420:04
6:28
#1623
20M
20.00 mi12:05:592:05:296:169:19
6:51
#1714
21M
21.00 mi12:13:042:12:346:197:05
7:05
#1727
35K
21.75 mi12:18:002:17:306:194:56
6:36
#1750
23M
23.00 mi12:26:472:26:176:228:47
7:01
#1822
24M
24.00 mi12:34:072:33:376:247:20
7:20
#1973
40K
24.85 mi12:40:522:40:226:276:45
7:54
#2163
25.2M
25.20 mi12:43:462:43:166:292:54
8:25
#2239
Finish
26.22 mi12:50:592:50:296:307:13
7:05
#2347
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2108201020101503(Top 5%)1430(Top 9%)1430(Top 25%)
10K6.21 mi3.10 mi1940+1681848+1621848+1621807(Top 6%)1716(Top 11%)1716(Top 30%)
15K9.32 mi3.11 mi1776+1641690+1581690+1581503(Top 5%)1430(Top 9%)1430(Top 25%)
20K12.43 mi3.11 mi1670+1061586+1041586+1041429(Top 5%)1355(Top 8%)1355(Top 24%)
Half13.11 mi0.68 mi1645+251561+251561+251493(Top 5%)1421(Top 9%)1421(Top 25%)
25K15.53 mi2.42 mi1629+161546+151546+151672(Top 6%)1589(Top 10%)1589(Top 28%)
30K18.64 mi3.11 mi1623+61540+61540+61805(Top 6%)1716(Top 11%)1716(Top 30%)
20M20.00 mi1.36 mi1714-911628-881628-883211(Top 11%)2967(Top 18%)2967(Top 53%)
21M21.00 mi1.00 mi1727-131639-111639-112584(Top 9%)2406(Top 15%)2406(Top 43%)
35K21.75 mi0.75 mi1750-231660-211660-212887(Top 10%)2659(Top 17%)2659(Top 47%)
23M23.00 mi1.25 mi1822-721728-681728-683804(Top 13%)3417(Top 21%)3417(Top 61%)
24M24.00 mi1.00 mi1973-1511872-1441872-1446556(Top 23%)5250(Top 33%)5250(Top 93%)
40K24.85 mi0.85 mi2163-1902055-1832055-1839367(Top 33%)6707(Top 42%)6707(Top 119%)
25.2M25.20 mi0.35 mi2239-762126-712126-718100(Top 29%)5924(Top 37%)5924(Top 105%)
Finish26.22 mi1.02 mi2347-1082225-992225-996207(Top 22%)4850(Top 30%)4850(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21story building
+97ft-345ft

Overall

1503

Males

1430

M18-39

1430

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1807

Males

1716

M18-39

1716

10K→15K

6.2 - 9.3 mi

Top 5%
×3story building
+67ft-78ft

Overall

1503

Males

1430

M18-39

1430

15K→20K

9.3 - 12.4 mi

Top 5%
×5story building
+106ft-86ft

Overall

1429

Males

1355

M18-39

1355

20K→Half

12.4 - 13.1 mi

Top 5%
×2story building
+19ft-37ft

Overall

1493

Males

1421

M18-39

1421

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1672

Males

1589

M18-39

1589

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1805

Males

1716

M18-39

1716

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3211

Males

2967

M18-39

2967

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2584

Males

2406

M18-39

2406

21M→35K

21.0 - 21.8 mi

Top 10%
×7story building
+17ft-86ft

Overall

2887

Males

2659

M18-39

2659

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3804

Males

3417

M18-39

3417

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6556

Males

5250

M18-39

5250

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9367

Males

6707

M18-39

6707

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8100

Males

5924

M18-39

5924

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6207

Males

4850

M18-39

4850

Passing Analysis

Category:
Athletes Passed
758
Passed By
997
Net Change
-239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2108
5K → 10K21749+168#2108#1940
10K → 15K1695+164#1940#1776
15K → 20K11610+106#1776#1670
20K → Half272+25#1670#1645
Half → 25K4529+16#1645#1629
25K → 30K6761+6#1629#1623
30K → 20M21112-91#1623#1714
20M → 21M2942-13#1714#1727
21M → 35K1538-23#1727#1750
35K → 23M2496-72#1750#1822
23M → 24M9160-151#1822#1973
24M → 40K8198-190#1973#2163
40K → 25.2M278-76#2163#2239
25.2M → Finish9117-108#2239#2347
TOTALS758997-239
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing