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BOSTON MARATHON 2025

Sergio Kameo

Bib: 10743•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Masters (Masters Men)
#0 / 10463
Top 22%
Division (M45-49)
#0 / 2386
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:49/mi
21:12
↑ 97↓ 3451.5%
10K· 6.21 mi
6:37/mi
41:44
↑ 79↓ 1380.4%
15K· 9.32 mi
6:44/mi
1:02:38
↑ 67↓ 78
20K· 12.43 mi
7:10/mi
1:24:53
↑ 106↓ 860.1%
Half· 13.11 mi
6:39/mi
1:29:25
↑ 19↓ 370.5%
25K· 15.53 mi
6:57/mi
1:46:16
↑ 66↓ 880.2%
30K· 18.64 mi
7:32/mi
2:09:40
↑ 181↓ 1480.2%
20M
7:46/mi
2:20:13
↑ 64↓ 500.2%
21M
8:08/mi
2:28:21
↑ 106↓ 241.6%
35K· 21.75 mi
7:57/mi
2:34:18
↑ 17↓ 861.7%
23M
7:57/mi
2:44:15
↑ 23↓ 630.6%
24M
7:29/mi
2:51:44
↓ 821.3%
40K· 24.85 mi
7:41/mi
2:58:18
↓ 200.3%
25.2M
8:10/mi
3:01:07
↑ 13↓ 160.2%
Finish· 26.22 mi
6:58/mi
3:08:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:25
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:38:48
Pace7:32 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:3721:126:4921:12
6:49
-
10K
6.21 mi11:08:0941:446:4320:32
6:37
-0:12
15K
9.32 mi11:29:031:02:386:4320:54
6:44
+0:07
20K
12.43 mi11:51:181:24:536:5022:15
7:10
+0:26
Half
13.11 mi11:55:501:29:256:494:32
6:39
-0:31
25K
15.53 mi12:12:411:46:166:5016:51
6:57
+0:18
30K
18.64 mi12:36:052:09:406:5723:24
7:32
+0:35
20M
20.00 mi12:46:382:20:137:0110:33
7:46
+0:14
21M
21.00 mi12:54:462:28:217:048:08
8:08
+0:22
35K
21.75 mi13:00:432:34:187:065:57
7:57
-0:11
23M
23.00 mi13:10:402:44:157:089:57
7:57
0:00
24M
24.00 mi13:18:092:51:447:097:29
7:29
-0:28
40K
24.85 mi13:24:432:58:187:106:34
7:41
+0:12
25.2M
25.20 mi13:27:323:01:077:112:49
8:10
+0:29
Finish
26.22 mi13:34:383:08:137:117:06
6:58
-1:12

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

6:37 /mi

Average Pace

7:11 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:22

60% of race

Time at Steady Pace

37:27

20% of race

Time at Slower Pace

37:24

20% of race

Average Pace: 7:11 /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 mi10:47:3721:126:4921:12
6:49
#6507
10K
6.21 mi11:08:0941:446:4320:32
6:37
#5532
15K
9.32 mi11:29:031:02:386:4320:54
6:44
#5448
20K
12.43 mi11:51:181:24:536:5022:15
7:10
#6228
Half
13.11 mi11:55:501:29:256:494:32
6:39
#6132
25K
15.53 mi12:12:411:46:166:5016:51
6:57
#6080
30K
18.64 mi12:36:052:09:406:5723:24
7:32
#6368
20M
20.00 mi12:46:382:20:137:0110:33
7:46
#6455
21M
21.00 mi12:54:462:28:217:048:08
8:08
#6468
35K
21.75 mi13:00:432:34:187:065:57
7:57
#6593
23M
23.00 mi13:10:402:44:157:089:57
7:57
#6673
24M
24.00 mi13:18:092:51:447:097:29
7:29
#6663
40K
24.85 mi13:24:432:58:187:106:34
7:41
#6656
25.2M
25.20 mi13:27:323:01:077:112:49
8:10
#6653
Finish
26.22 mi13:34:383:08:137:117:06
6:58
#6544
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6507592459245346(Top 19%)4934(Top 31%)4934(Top 207%)
10K6.21 mi3.10 mi5532+9755114+8105114+8104553(Top 16%)4267(Top 26%)4267(Top 179%)
15K9.32 mi3.11 mi5448+845040+745040+745346(Top 19%)4934(Top 31%)4934(Top 207%)
20K12.43 mi3.11 mi6228-7805664-6245664-6247891(Top 28%)6798(Top 42%)6798(Top 285%)
Half13.11 mi0.68 mi6132+965589+755589+754864(Top 17%)4524(Top 28%)4524(Top 190%)
25K15.53 mi2.42 mi6080+525523+665523+665989(Top 21%)5393(Top 33%)5393(Top 226%)
30K18.64 mi3.11 mi6368-2885729-2065729-2067955(Top 28%)6555(Top 41%)6555(Top 275%)
20M20.00 mi1.36 mi6455-875780-515780-518770(Top 31%)6874(Top 43%)6874(Top 288%)
21M21.00 mi1.00 mi6468-135769+115769+118134(Top 29%)6327(Top 39%)6327(Top 265%)
35K21.75 mi0.75 mi6593-1255841-725841-7211870(Top 42%)8240(Top 51%)8240(Top 345%)
23M23.00 mi1.25 mi6673-805869-285869-289601(Top 34%)7023(Top 44%)7023(Top 294%)
24M24.00 mi1.00 mi6663+105835+345835+347549(Top 27%)5838(Top 36%)5838(Top 245%)
40K24.85 mi0.85 mi6656+75804+315804+317925(Top 28%)5945(Top 37%)5945(Top 249%)
25.2M25.20 mi0.35 mi6653+35788+165788+166824(Top 24%)5243(Top 33%)5243(Top 220%)
Finish26.22 mi1.02 mi6544+1095684+1045684+1045516(Top 19%)4440(Top 28%)4440(Top 186%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21story building
+97ft-345ft

Overall

5346

Males

4934

M45-49

4934

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4553

Males

4267

M45-49

4267

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+67ft-78ft

Overall

5346

Males

4934

M45-49

4934

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7891

Males

6798

M45-49

6798

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4864

Males

4524

M45-49

4524

Half→25K

13.1 - 15.5 mi

Top 21%
×4story building
+66ft-88ft

Overall

5989

Males

5393

M45-49

5393

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7955

Males

6555

M45-49

6555

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8770

Males

6874

M45-49

6874

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

8134

Males

6327

M45-49

6327

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11870

Males

8240

M45-49

8240

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9601

Males

7023

M45-49

7023

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7549

Males

5838

M45-49

5838

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7925

Males

5945

M45-49

5945

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6824

Males

5243

M45-49

5243

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

5516

Males

4440

M45-49

4440

Passing Analysis

Category:
Athletes Passed
2013
Passed By
2050
Net Change
-37
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6507
5K → 10K9794+975#6507#5532
10K → 15K16278+84#5532#5448
15K → 20K25805-780#5448#6228
20K → Half971+96#6228#6132
Half → 25K14896+52#6132#6080
25K → 30K94382-288#6080#6368
30K → 20M64151-87#6368#6455
20M → 21M6073-13#6455#6468
21M → 35K22147-125#6468#6593
35K → 23M59139-80#6593#6673
23M → 24M7262+10#6673#6663
24M → 40K6861+7#6663#6656
40K → 25.2M3128+3#6656#6653
25.2M → Finish13223+109#6653#6544
TOTALS20132050-37
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing