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BOSTON MARATHON 2025

Oscar Ancona

Bib: 12785•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 33%
Gender (Male)
#0 / 16105
Top 46%
Masters (Masters Men)
#0 / 10463
Top 35%
Division (M45-49)
#0 / 2386
Top 49%
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
7:21/mi
22:50
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:09
↑ 67↓ 78
20K· 12.43 mi
7:17/mi
1:30:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:35:44
↑ 19↓ 370.5%
25K· 15.53 mi
7:20/mi
1:53:32
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:17:43
↑ 181↓ 1480.2%
20M
8:01/mi
2:28:36
↑ 64↓ 500.2%
21M
8:36/mi
2:37:12
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:42:52
↑ 17↓ 861.7%
23M
7:42/mi
2:52:31
↑ 23↓ 630.6%
24M
7:34/mi
3:00:05
↓ 821.3%
40K· 24.85 mi
7:45/mi
3:06:43
↓ 200.3%
25.2M
8:54/mi
3:09:47
↑ 13↓ 160.2%
Finish· 26.22 mi
7:43/mi
3:17:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:44
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:41:55
Pace7:46 /mi
📊Positive Split: 6.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0822:507:2122:50
7:21
-
10K
6.21 mi11:12:4345:257:1922:35
7:16
-0:05
15K
9.32 mi11:35:271:08:097:1922:44
7:19
+0:03
20K
12.43 mi11:58:051:30:477:1822:38
7:17
-0:02
Half
13.11 mi12:03:021:35:447:184:57
7:15
-0:02
25K
15.53 mi12:20:501:53:327:1917:48
7:20
+0:05
30K
18.64 mi12:45:012:17:437:2324:11
7:47
+0:27
20M
20.00 mi12:55:542:28:367:2610:53
8:01
+0:14
21M
21.00 mi13:04:302:37:127:298:36
8:36
+0:35
35K
21.75 mi13:10:102:42:527:295:40
7:34
-1:02
23M
23.00 mi13:19:492:52:317:309:39
7:42
+0:08
24M
24.00 mi13:27:233:00:057:307:34
7:34
-0:08
40K
24.85 mi13:34:013:06:437:316:38
7:45
+0:11
25.2M
25.20 mi13:37:053:09:477:323:04
8:54
+1:09
Finish
26.22 mi13:44:573:17:397:337:52
7:43
-1:11

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

7:15 /mi

Average Pace

7:33 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:54

37% of race

Time at Steady Pace

1:42:12

52% of race

Time at Slower Pace

22:33

11% of race

Average Pace: 7:32 /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 mi10:50:0822:507:2122:50
7:21
#10836
10K
6.21 mi11:12:4345:257:1922:35
7:16
#10413
15K
9.32 mi11:35:271:08:097:1922:44
7:19
#10312
20K
12.43 mi11:58:051:30:477:1822:38
7:17
#9917
Half
13.11 mi12:03:021:35:447:184:57
7:15
#9902
25K
15.53 mi12:20:501:53:327:1917:48
7:20
#9641
30K
18.64 mi12:45:012:17:437:2324:11
7:47
#9601
20M
20.00 mi12:55:542:28:367:2610:53
8:01
#9630
21M
21.00 mi13:04:302:37:127:298:36
8:36
#9693
35K
21.75 mi13:10:102:42:527:295:40
7:34
#9638
23M
23.00 mi13:19:492:52:317:309:39
7:42
#9501
24M
24.00 mi13:27:233:00:057:307:34
7:34
#9406
40K
24.85 mi13:34:013:06:437:316:38
7:45
#9343
25.2M
25.20 mi13:37:053:09:477:323:04
8:54
#9357
Finish
26.22 mi13:44:573:17:397:337:52
7:43
#9405
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi108368607860710115(Top 36%)8147(Top 51%)8147(Top 341%)
10K6.21 mi3.10 mi10413+4238375+2328375+23210074(Top 35%)8184(Top 51%)8184(Top 343%)
15K9.32 mi3.11 mi10312+1018306+698306+6910115(Top 36%)8147(Top 51%)8147(Top 341%)
20K12.43 mi3.11 mi9917+3958066+2408066+2408921(Top 31%)7403(Top 46%)7403(Top 310%)
Half13.11 mi0.68 mi9902+158054+128054+129547(Top 34%)7782(Top 48%)7782(Top 326%)
25K15.53 mi2.42 mi9641+2617874+1807874+1808671(Top 31%)7157(Top 44%)7157(Top 300%)
30K18.64 mi3.11 mi9601+407796+787796+789800(Top 35%)7580(Top 47%)7580(Top 318%)
20M20.00 mi1.36 mi9630-297778+187778+1810478(Top 37%)7771(Top 48%)7771(Top 326%)
21M21.00 mi1.00 mi9693-637790-127790-1211062(Top 39%)7895(Top 49%)7895(Top 331%)
35K21.75 mi0.75 mi9638+557737+537737+539136(Top 32%)6926(Top 43%)6926(Top 290%)
23M23.00 mi1.25 mi9501+1377619+1187619+1187931(Top 28%)6125(Top 38%)6125(Top 257%)
24M24.00 mi1.00 mi9406+957528+917528+918152(Top 29%)6210(Top 39%)6210(Top 260%)
40K24.85 mi0.85 mi9343+637458+707458+708465(Top 30%)6239(Top 39%)6239(Top 261%)
25.2M25.20 mi0.35 mi9357-147447+117447+1111121(Top 39%)7527(Top 47%)7527(Top 315%)
Finish26.22 mi1.02 mi9405-487434+137434+1310820(Top 38%)7412(Top 46%)7412(Top 311%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10115

Males

8147

M45-49

8147

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

10074

Males

8184

M45-49

8184

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10115

Males

8147

M45-49

8147

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8921

Males

7403

M45-49

7403

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9547

Males

7782

M45-49

7782

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8671

Males

7157

M45-49

7157

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9800

Males

7580

M45-49

7580

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10478

Males

7771

M45-49

7771

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

11062

Males

7895

M45-49

7895

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9136

Males

6926

M45-49

6926

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7931

Males

6125

M45-49

6125

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8152

Males

6210

M45-49

6210

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8465

Males

6239

M45-49

6239

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11121

Males

7527

M45-49

7527

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10820

Males

7412

M45-49

7412

Passing Analysis

Category:
Athletes Passed
2487
Passed By
1056
Net Change
+1431
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10836
5K → 10K51794+423#10836#10413
10K → 15K222121+101#10413#10312
15K → 20K42126+395#10312#9917
20K → Half3217+15#9917#9902
Half → 25K29433+261#9902#9641
25K → 30K249209+40#9641#9601
30K → 20M92121-29#9601#9630
20M → 21M74137-63#9630#9693
21M → 35K8429+55#9693#9638
35K → 23M18144+137#9638#9501
23M → 24M12833+95#9501#9406
24M → 40K10239+63#9406#9343
40K → 25.2M3751-14#9343#9357
25.2M → Finish54102-48#9357#9405
TOTALS24871056+1431
📊

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