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BOSTON MARATHON 2025

Joseph D'Alessio

Bib: 12767•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 50%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:00/mi
24:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
49:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:13:23
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:37:52
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:43:02
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
2:02:16
↑ 66↓ 880.2%
30K· 18.64 mi
8:39/mi
2:29:09
↑ 181↓ 1480.2%
20M
8:16/mi
2:40:23
↑ 64↓ 500.2%
21M
8:56/mi
2:49:19
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
2:55:46
↑ 17↓ 861.7%
23M
8:38/mi
3:06:34
↑ 23↓ 630.6%
24M
8:04/mi
3:14:38
↓ 821.3%
40K· 24.85 mi
8:52/mi
3:22:13
↓ 200.3%
25.2M
8:36/mi
3:25:11
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:33:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:02
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:50:27
Pace8:26 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4524:518:0024:51
8:00
-
10K
6.21 mi11:17:1949:257:5724:34
7:54
-0:06
15K
9.32 mi11:41:171:13:237:5223:58
7:43
-0:11
20K
12.43 mi12:05:461:37:527:5324:29
7:53
+0:10
Half
13.11 mi12:10:561:43:027:525:10
7:34
-0:19
25K
15.53 mi12:30:102:02:167:5219:14
7:56
+0:22
30K
18.64 mi12:57:032:29:098:0026:53
8:39
+0:43
20M
20.00 mi13:08:172:40:238:0111:14
8:16
-0:23
21M
21.00 mi13:17:132:49:198:048:56
8:56
+0:40
35K
21.75 mi13:23:402:55:468:056:27
8:37
-0:19
23M
23.00 mi13:34:283:06:348:0710:48
8:38
+0:01
24M
24.00 mi13:42:323:14:388:078:04
8:04
-0:34
40K
24.85 mi13:50:073:22:138:087:35
8:52
+0:48
25.2M
25.20 mi13:53:053:25:118:092:58
8:36
-0:16
Finish
26.22 mi14:01:233:33:298:098:18
8:09
-0:27

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

7:34 /mi

Average Pace

8:09 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:52

70% of race

Time at Steady Pace

54:41

26% of race

Time at Slower Pace

8:56

4% of race

Average Pace: 8:09 /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 mi10:52:4524:518:0024:51
8:00
#16561
10K
6.21 mi11:17:1949:257:5724:34
7:54
#16118
15K
9.32 mi11:41:171:13:237:5223:58
7:43
#15265
20K
12.43 mi12:05:461:37:527:5324:29
7:53
#14875
Half
13.11 mi12:10:561:43:027:525:10
7:34
#14746
25K
15.53 mi12:30:102:02:167:5219:14
7:56
#14468
30K
18.64 mi12:57:032:29:098:0026:53
8:39
#14740
20M
20.00 mi13:08:172:40:238:0111:14
8:16
#14475
21M
21.00 mi13:17:132:49:198:048:56
8:56
#14369
35K
21.75 mi13:23:402:55:468:056:27
8:37
#14448
23M
23.00 mi13:34:283:06:348:0710:48
8:38
#14407
24M
24.00 mi13:42:323:14:388:078:04
8:04
#14267
40K
24.85 mi13:50:073:22:138:087:35
8:52
#14297
25.2M
25.20 mi13:53:053:25:118:092:58
8:36
#14207
Finish
26.22 mi14:01:233:33:298:098:18
8:09
#14165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi16561110161101613630(Top 48%)9788(Top 61%)9788(Top 410%)
10K6.21 mi3.10 mi16118+44310857+15910857+15915700(Top 55%)10706(Top 66%)10706(Top 449%)
15K9.32 mi3.11 mi15265+85310503+35410503+35413630(Top 48%)9788(Top 61%)9788(Top 410%)
20K12.43 mi3.11 mi14875+39010312+19110312+19113919(Top 49%)9833(Top 61%)9833(Top 412%)
Half13.11 mi0.68 mi14746+12910264+4810264+4812322(Top 43%)9177(Top 57%)9177(Top 385%)
25K15.53 mi2.42 mi14468+27810109+15510109+15513354(Top 47%)9462(Top 59%)9462(Top 397%)
30K18.64 mi3.11 mi14740-27210171-6210171-6215709(Top 55%)10376(Top 64%)10376(Top 435%)
20M20.00 mi1.36 mi14475+26510031+14010031+14012266(Top 43%)8663(Top 54%)8663(Top 363%)
21M21.00 mi1.00 mi14369+1069965+669965+6613115(Top 46%)8907(Top 55%)8907(Top 373%)
35K21.75 mi0.75 mi14448-799987-229987-2216151(Top 57%)10234(Top 64%)10234(Top 429%)
23M23.00 mi1.25 mi14407+419923+649923+6414072(Top 50%)9203(Top 57%)9203(Top 386%)
24M24.00 mi1.00 mi14267+1409834+899834+8911696(Top 41%)8011(Top 50%)8011(Top 336%)
40K24.85 mi0.85 mi14297-309816+189816+1815550(Top 55%)9684(Top 60%)9684(Top 406%)
25.2M25.20 mi0.35 mi14207+909769+479769+479431(Top 33%)6683(Top 41%)6683(Top 280%)
Finish26.22 mi1.02 mi14165+429722+479722+4713889(Top 49%)8958(Top 56%)8958(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13630

Males

9788

M45-49

9788

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15700

Males

10706

M45-49

10706

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13630

Males

9788

M45-49

9788

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13919

Males

9833

M45-49

9833

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12322

Males

9177

M45-49

9177

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13354

Males

9462

M45-49

9462

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15709

Males

10376

M45-49

10376

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

12266

Males

8663

M45-49

8663

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

13115

Males

8907

M45-49

8907

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16151

Males

10234

M45-49

10234

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14072

Males

9203

M45-49

9203

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11696

Males

8011

M45-49

8011

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15550

Males

9684

M45-49

9684

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9431

Males

6683

M45-49

6683

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13889

Males

8958

M45-49

8958

Passing Analysis

Category:
Athletes Passed
3470
Passed By
1074
Net Change
+2396
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16561
5K → 10K561118+443#16561#16118
10K → 15K86411+853#16118#15265
15K → 20K41828+390#15265#14875
20K → Half1312+129#14875#14746
Half → 25K31941+278#14746#14468
25K → 30K164436-272#14468#14740
30K → 20M28621+265#14740#14475
20M → 21M16660+106#14475#14369
21M → 35K41120-79#14369#14448
35K → 23M12281+41#14448#14407
23M → 24M1499+140#14407#14267
24M → 40K6494-30#14267#14297
40K → 25.2M933+90#14297#14207
25.2M → Finish9250+42#14207#14165
TOTALS34701074+2396
📊

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