Boston Marathon logo
BOSTON MARATHON 2025

Carlos Siqueiros

Bib: 1278•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Masters (Masters Men)
#0 / 10463
Top 4%
Division (M40-44)
#0 / 2247
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:11
Rank: #1718
Start → 5K
19:11 | 6:10/mi
10K· 6.21 mi
38:05
Rank: #1556 (+162)
5K → 10K
18:54 | 6:05/mi
15K· 9.32 mi
57:00
Rank: #1463 (+93)
10K → 15K
18:55 | 6:05/mi
20K· 12.43 mi
1:16:35
Rank: #1582 (-119)
15K → 20K
19:35 | 6:18/mi
Half· 13.11 mi
1:20:47
Rank: #1592 (-10)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:36:05
Rank: #1625 (-33)
Half → 25K
15:18 | 6:19/mi
30K· 18.64 mi
1:56:47
Rank: #1784 (-159)
25K → 30K
20:42 | 6:40/mi
20M
2:05:59
Rank: #1828 (-44)
30K → 20M
9:12 | 6:46/mi
21M
2:13:20
Rank: #1905 (-77)
20M → 21M
7:21 | 7:21/mi
35K· 21.75 mi
2:18:14
Rank: #1905
21M → 35K
4:54 | 6:33/mi
23M
2:27:05
Rank: #2001 (-96)
35K → 23M
8:51 | 7:04/mi
24M
2:34:03
Rank: #2059 (-58)
23M → 24M
6:58 | 6:58/mi
40K· 24.85 mi
2:40:17
Rank: #2145 (-86)
24M → 40K
6:14 | 7:17/mi
25.2M
2:43:08
Rank: #2209 (-64)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
2:50:22
Rank: #2334 (-125)
25.2M → Finish
7:14 | 7:06/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
Time1:20:47
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:29:35
Pace6:50 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2219:116:1019:11
6:10
-
10K
6.21 mi10:41:1638:056:0818:54
6:05
-0:05
15K
9.32 mi11:00:1157:006:0718:55
6:05
0:00
20K
12.43 mi11:19:461:16:356:1019:35
6:18
+0:13
Half
13.11 mi11:23:581:20:476:104:12
6:09
-0:09
25K
15.53 mi11:39:161:36:056:1115:18
6:19
+0:10
30K
18.64 mi11:59:581:56:476:1620:42
6:40
+0:21
20M
20.00 mi12:09:102:05:596:189:12
6:46
+0:06
21M
21.00 mi12:16:312:13:206:217:21
7:21
+0:35
35K
21.75 mi12:21:252:18:146:214:54
6:33
-0:48
23M
23.00 mi12:30:162:27:056:248:51
7:04
+0:31
24M
24.00 mi12:37:142:34:036:256:58
6:58
-0:06
40K
24.85 mi12:43:282:40:176:276:14
7:17
+0:19
25.2M
25.20 mi12:46:192:43:086:282:51
8:16
+0:59
Finish
26.22 mi12:53:332:50:226:307:14
7:06
-1:10

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

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:05

56% of race

Time at Steady Pace

34:48

20% of race

Time at Slower Pace

39:29

23% 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 mi10:22:2219:116:1019:11
6:10
#1718
10K
6.21 mi10:41:1638:056:0818:54
6:05
#1556
15K
9.32 mi11:00:1157:006:0718:55
6:05
#1463
20K
12.43 mi11:19:461:16:356:1019:35
6:18
#1582
Half
13.11 mi11:23:581:20:476:104:12
6:09
#1592
25K
15.53 mi11:39:161:36:056:1115:18
6:19
#1625
30K
18.64 mi11:59:581:56:476:1620:42
6:40
#1784
20M
20.00 mi12:09:102:05:596:189:12
6:46
#1828
21M
21.00 mi12:16:312:13:206:217:21
7:21
#1905
35K
21.75 mi12:21:252:18:146:214:54
6:33
#1905
23M
23.00 mi12:30:162:27:056:248:51
7:04
#2001
24M
24.00 mi12:37:142:34:036:256:58
6:58
#2059
40K
24.85 mi12:43:282:40:176:276:14
7:17
#2145
25.2M
25.20 mi12:46:192:43:086:282:51
8:16
#2209
Finish
26.22 mi12:53:332:50:226:307:14
7:06
#2334
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1718163216321330(Top 5%)1263(Top 8%)1263(Top 56%)
10K6.21 mi3.10 mi1556+1621479+1531479+1531417(Top 5%)1345(Top 8%)1345(Top 60%)
15K9.32 mi3.11 mi1463+931388+911388+911330(Top 5%)1263(Top 8%)1263(Top 56%)
20K12.43 mi3.11 mi1582-1191501-1131501-1132024(Top 7%)1929(Top 12%)1929(Top 86%)
Half13.11 mi0.68 mi1592-101510-91510-91767(Top 6%)1683(Top 10%)1683(Top 75%)
25K15.53 mi2.42 mi1625-331542-321542-321909(Top 7%)1815(Top 11%)1815(Top 81%)
30K18.64 mi3.11 mi1784-1591699-1571699-1572688(Top 9%)2542(Top 16%)2542(Top 113%)
20M20.00 mi1.36 mi1828-441738-391738-392753(Top 10%)2578(Top 16%)2578(Top 115%)
21M21.00 mi1.00 mi1905-771812-741812-743823(Top 13%)3473(Top 22%)3473(Top 155%)
35K21.75 mi0.75 mi19051809+31809+32685(Top 9%)2483(Top 15%)2483(Top 111%)
23M23.00 mi1.25 mi2001-961901-921901-924122(Top 15%)3666(Top 23%)3666(Top 163%)
24M24.00 mi1.00 mi2059-581956-551956-554412(Top 16%)3833(Top 24%)3833(Top 171%)
40K24.85 mi0.85 mi2145-862037-812037-815547(Top 20%)4566(Top 28%)4566(Top 203%)
25.2M25.20 mi0.35 mi2209-642099-622099-627304(Top 26%)5469(Top 34%)5469(Top 243%)
Finish26.22 mi1.02 mi2334-1252214-1152214-1156319(Top 22%)4919(Top 31%)4919(Top 219%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1330

Males

1263

M40-44

1263

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1417

Males

1345

M40-44

1345

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1330

Males

1263

M40-44

1263

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2024

Males

1929

M40-44

1929

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1767

Males

1683

M40-44

1683

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1909

Males

1815

M40-44

1815

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2688

Males

2542

M40-44

2542

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2753

Males

2578

M40-44

2578

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3823

Males

3473

M40-44

3473

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2685

Males

2483

M40-44

2483

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4122

Males

3666

M40-44

3666

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4412

Males

3833

M40-44

3833

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5547

Males

4566

M40-44

4566

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7304

Males

5469

M40-44

5469

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6319

Males

4919

M40-44

4919

Passing Analysis

Category:
Athletes Passed
521
Passed By
1137
Net Change
-616
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1718
5K → 10K18826+162#1718#1556
10K → 15K10512+93#1556#1463
15K → 20K25144-119#1463#1582
20K → Half414-10#1582#1592
Half → 25K3063-33#1592#1625
25K → 30K30189-159#1625#1784
30K → 20M2569-44#1784#1828
20M → 21M1794-77#1828#1905
21M → 35K27270#1905#1905
35K → 23M21117-96#1905#2001
23M → 24M2280-58#2001#2059
24M → 40K14100-86#2059#2145
40K → 25.2M569-64#2145#2209
25.2M → Finish8133-125#2209#2334
TOTALS5211137-616
📊

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