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BOSTON MARATHON 2025

Ernesto Diaz

Bib: 8940•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 32%
Division (M45-49)
#0 / 2386
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:40
Rank: #10308
Start → 5K
22:40 | 7:18/mi
10K· 6.21 mi
45:08
Rank: #10014 (+294)
5K → 10K
22:28 | 7:14/mi
15K· 9.32 mi
1:07:18
Rank: #9499 (+515)
10K → 15K
22:10 | 7:08/mi
20K· 12.43 mi
1:29:49
Rank: #9225 (+274)
15K → 20K
22:31 | 7:15/mi
Half· 13.11 mi
1:34:42
Rank: #9200 (+25)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:52:14
Rank: #8902 (+298)
Half → 25K
17:32 | 7:14/mi
30K· 18.64 mi
2:15:32
Rank: #8597 (+305)
25K → 30K
23:18 | 7:30/mi
20M
2:26:01
Rank: #8528 (+69)
30K → 20M
10:29 | 7:43/mi
21M
2:34:35
Rank: #8651 (-123)
20M → 21M
8:34 | 8:34/mi
35K· 21.75 mi
2:40:15
Rank: #8632 (+19)
21M → 35K
5:40 | 7:34/mi
23M
2:50:06
Rank: #8595 (+37)
35K → 23M
9:51 | 7:52/mi
24M
2:57:52
Rank: #8621 (-26)
23M → 24M
7:46 | 7:46/mi
40K· 24.85 mi
3:04:43
Rank: #8646 (-25)
24M → 40K
6:51 | 8:01/mi
25.2M
3:07:46
Rank: #8678 (-32)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:16:00
Rank: #8859 (-181)
25.2M → Finish
8:14 | 8:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:42
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:41:18
Pace7:44 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0922:407:1822:40
7:18
-
10K
6.21 mi11:10:3745:087:1622:28
7:14
-0:04
15K
9.32 mi11:32:471:07:187:1322:10
7:08
-0:06
20K
12.43 mi11:55:181:29:497:1422:31
7:15
+0:07
Half
13.11 mi12:00:111:34:427:134:53
7:09
-0:06
25K
15.53 mi12:17:431:52:147:1317:32
7:14
+0:05
30K
18.64 mi12:41:012:15:327:1623:18
7:30
+0:16
20M
20.00 mi12:51:302:26:017:1810:29
7:43
+0:13
21M
21.00 mi13:00:042:34:357:228:34
8:34
+0:51
35K
21.75 mi13:05:442:40:157:225:40
7:34
-1:00
23M
23.00 mi13:15:352:50:067:249:51
7:52
+0:18
24M
24.00 mi13:23:212:57:527:257:46
7:46
-0:06
40K
24.85 mi13:30:123:04:437:266:51
8:01
+0:15
25.2M
25.20 mi13:33:153:07:467:273:03
8:51
+0:50
Finish
26.22 mi13:41:293:16:007:298:14
8:05
-0:46

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

7:08 /mi

Average Pace

7:29 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:14

57% of race

Time at Steady Pace

47:13

24% of race

Time at Slower Pace

36:33

19% of race

Average Pace: 7:29 /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 mi10:48:0922:407:1822:40
7:18
#10308
10K
6.21 mi11:10:3745:087:1622:28
7:14
#10014
15K
9.32 mi11:32:471:07:187:1322:10
7:08
#9499
20K
12.43 mi11:55:181:29:497:1422:31
7:15
#9225
Half
13.11 mi12:00:111:34:427:134:53
7:09
#9200
25K
15.53 mi12:17:431:52:147:1317:32
7:14
#8902
30K
18.64 mi12:41:012:15:327:1623:18
7:30
#8597
20M
20.00 mi12:51:302:26:017:1810:29
7:43
#8528
21M
21.00 mi13:00:042:34:357:228:34
8:34
#8651
35K
21.75 mi13:05:442:40:157:225:40
7:34
#8632
23M
23.00 mi13:15:352:50:067:249:51
7:52
#8595
24M
24.00 mi13:23:212:57:527:257:46
7:46
#8621
40K
24.85 mi13:30:123:04:437:266:51
8:01
#8646
25.2M
25.20 mi13:33:153:07:467:273:03
8:51
#8678
Finish
26.22 mi13:41:293:16:007:298:14
8:05
#8859
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi10308833283328578(Top 30%)7295(Top 45%)7295(Top 306%)
10K6.21 mi3.10 mi10014+2948175+1578175+1579738(Top 34%)8007(Top 50%)8007(Top 336%)
15K9.32 mi3.11 mi9499+5157876+2997876+2998578(Top 30%)7295(Top 45%)7295(Top 306%)
20K12.43 mi3.11 mi9225+2747685+1917685+1918590(Top 30%)7219(Top 45%)7219(Top 303%)
Half13.11 mi0.68 mi9200+257670+157670+158704(Top 31%)7316(Top 45%)7316(Top 307%)
25K15.53 mi2.42 mi8902+2987476+1947476+1947827(Top 28%)6656(Top 41%)6656(Top 279%)
30K18.64 mi3.11 mi8597+3057239+2377239+2377738(Top 27%)6433(Top 40%)6433(Top 270%)
20M20.00 mi1.36 mi8528+697164+757164+758438(Top 30%)6693(Top 42%)6693(Top 281%)
21M21.00 mi1.00 mi8651-1237196-327196-3210860(Top 38%)7799(Top 48%)7799(Top 327%)
35K21.75 mi0.75 mi8632+197172+247172+249130(Top 32%)6920(Top 43%)6920(Top 290%)
23M23.00 mi1.25 mi8595+377102+707102+709034(Top 32%)6734(Top 42%)6734(Top 282%)
24M24.00 mi1.00 mi8621-267088+147088+149535(Top 34%)6927(Top 43%)6927(Top 290%)
40K24.85 mi0.85 mi8646-257055+337055+3310254(Top 36%)7167(Top 45%)7167(Top 300%)
25.2M25.20 mi0.35 mi8678-327062-77062-710835(Top 38%)7388(Top 46%)7388(Top 310%)
Finish26.22 mi1.02 mi8859-1817126-647126-6413394(Top 47%)8702(Top 54%)8702(Top 365%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8578

Males

7295

M45-49

7295

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9738

Males

8007

M45-49

8007

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8578

Males

7295

M45-49

7295

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8590

Males

7219

M45-49

7219

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8704

Males

7316

M45-49

7316

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7827

Males

6656

M45-49

6656

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7738

Males

6433

M45-49

6433

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8438

Males

6693

M45-49

6693

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

10860

Males

7799

M45-49

7799

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

9130

Males

6920

M45-49

6920

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9034

Males

6734

M45-49

6734

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9535

Males

6927

M45-49

6927

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10254

Males

7167

M45-49

7167

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10835

Males

7388

M45-49

7388

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

13394

Males

8702

M45-49

8702

Passing Analysis

Category:
Athletes Passed
2615*
Passed By
1166
Net Change
+1449
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10308
5K → 10K422128+294#10308#10014
10K → 15K532*17+515#10014#9499
15K → 20K32248+274#9499#9225
20K → Half4722+25#9225#9200
Half → 25K31921+298#9200#8902
25K → 30K37671+305#8902#8597
30K → 20M12354+69#8597#8528
20M → 21M57180-123#8528#8651
21M → 35K6647+19#8651#8632
35K → 23M138101+37#8632#8595
23M → 24M7197-26#8595#8621
24M → 40K81106-25#8621#8646
40K → 25.2M2961-32#8646#8678
25.2M → Finish32213-181#8678#8859
TOTALS2615*1166+1449

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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