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BOSTON MARATHON 2025

Giacomo Grillo

Bib: P132•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
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
8:51/mi
27:30
↑ 97↓ 3451.5%
10K· 6.21 mi
9:04/mi
55:39
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:24:12
↑ 67↓ 78
20K· 12.43 mi
9:29/mi
1:53:41
↑ 106↓ 860.1%
Half· 13.11 mi
9:10/mi
1:59:56
↑ 19↓ 370.5%
25K· 15.53 mi
9:53/mi
2:23:53
↑ 66↓ 880.2%
30K· 18.64 mi
10:16/mi
2:55:48
↑ 181↓ 1480.2%
20M
10:14/mi
3:09:42
↑ 64↓ 500.2%
21M
11:07/mi
3:20:49
↑ 106↓ 241.6%
35K· 21.75 mi
8:53/mi
3:27:28
↑ 17↓ 861.7%
23M
9:45/mi
3:39:40
↑ 23↓ 630.6%
24M
10:27/mi
3:50:07
↓ 821.3%
40K· 24.85 mi
10:14/mi
3:58:52
↓ 200.3%
25.2M
13:20/mi
4:03:28
↑ 13↓ 160.2%
Finish· 26.22 mi
10:49/mi
4:14:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:56
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:14:33
Pace10:16 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:3227:308:5127:30
8:51
-
10K
6.21 mi10:45:4155:398:5728:09
9:04
+0:13
15K
9.32 mi11:14:141:24:129:0228:33
9:11
+0:07
20K
12.43 mi11:43:431:53:419:0929:29
9:29
+0:18
Half
13.11 mi11:49:581:59:569:096:15
9:10
-0:19
25K
15.53 mi12:13:552:23:539:1623:57
9:53
+0:43
30K
18.64 mi12:45:502:55:489:2631:55
10:16
+0:23
20M
20.00 mi12:59:443:09:429:2913:54
10:14
-0:02
21M
21.00 mi13:10:513:20:499:3411:07
11:07
+0:53
35K
21.75 mi13:17:303:27:289:326:39
8:53
-2:14
23M
23.00 mi13:29:423:39:409:3312:12
9:45
+0:52
24M
24.00 mi13:40:093:50:079:3510:27
10:27
+0:42
40K
24.85 mi13:48:543:58:529:378:45
10:14
-0:13
25.2M
25.20 mi13:53:304:03:289:404:36
13:20
+3:06
Finish
26.22 mi14:04:314:14:299:4311:01
10:49
-2:31

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

8:51 /mi

Average Pace

9:43 /mi

Slowest Pace

13:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:06

38% of race

Time at Steady Pace

2:00:12

47% of race

Time at Slower Pace

37:11

15% of race

Average Pace: 9:42 /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 mi10:17:3227:308:5127:30
8:51
#21762
10K
6.21 mi10:45:4155:398:5728:09
9:04
#22231
15K
9.32 mi11:14:141:24:129:0228:33
9:11
#22420
20K
12.43 mi11:43:431:53:419:0929:29
9:29
#22567
Half
13.11 mi11:49:581:59:569:096:15
9:10
#22564
25K
15.53 mi12:13:552:23:539:1623:57
9:53
#22661
30K
18.64 mi12:45:502:55:489:2631:55
10:16
#22605
20M
20.00 mi12:59:443:09:429:2913:54
10:14
#22508
21M
21.00 mi13:10:513:20:499:3411:07
11:07
#22450
35K
21.75 mi13:17:303:27:289:326:39
8:53
#22307
23M
23.00 mi13:29:423:39:409:3312:12
9:45
#22131
24M
24.00 mi13:40:093:50:079:3510:27
10:27
#22149
40K
24.85 mi13:48:543:58:529:378:45
10:14
#22115
25.2M
25.20 mi13:53:304:03:289:404:36
13:20
#22202
Finish
26.22 mi14:04:314:14:299:4311:01
10:49
#22286
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi21762132071320722822(Top 80%)13752(Top 85%)13752(Top 2152%)
10K6.21 mi3.10 mi22231-46913428-22113428-22122643(Top 80%)13638(Top 85%)13638(Top 2134%)
15K9.32 mi3.11 mi22420-18913542-11413542-11422822(Top 80%)13752(Top 85%)13752(Top 2152%)
20K12.43 mi3.11 mi22567-14713616-7413616-7422863(Top 80%)13730(Top 85%)13730(Top 2149%)
Half13.11 mi0.68 mi22564+313610+613610+622438(Top 79%)13529(Top 84%)13529(Top 2117%)
25K15.53 mi2.42 mi22661-9713646-3613646-3622958(Top 81%)13728(Top 85%)13728(Top 2148%)
30K18.64 mi3.11 mi22605+5613571+7513571+7522367(Top 79%)13327(Top 83%)13327(Top 2086%)
20M20.00 mi1.36 mi22508+9713512+5913512+5921646(Top 76%)12881(Top 80%)12881(Top 2016%)
21M21.00 mi1.00 mi22450+5813474+3813474+3821692(Top 76%)12828(Top 80%)12828(Top 2008%)
35K21.75 mi0.75 mi22307+14313391+8313391+8317705(Top 62%)10931(Top 68%)10931(Top 1711%)
23M23.00 mi1.25 mi22131+17613280+11113280+11119592(Top 69%)11720(Top 73%)11720(Top 1834%)
24M24.00 mi1.00 mi22149-1813270+1013270+1022674(Top 80%)13144(Top 82%)13144(Top 2057%)
40K24.85 mi0.85 mi22115+3413234+3613234+3621170(Top 75%)12368(Top 77%)12368(Top 1936%)
25.2M25.20 mi0.35 mi22202-8713274-4013274-4025469(Top 90%)14470(Top 90%)14470(Top 2264%)
Finish26.22 mi1.02 mi22286-8413286-1213286-1224964(Top 88%)14254(Top 89%)14254(Top 2231%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22822

Males

13752

M65-69

13752

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22643

Males

13638

M65-69

13638

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22822

Males

13752

M65-69

13752

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22863

Males

13730

M65-69

13730

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22438

Males

13529

M65-69

13529

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

22958

Males

13728

M65-69

13728

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22367

Males

13327

M65-69

13327

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

21646

Males

12881

M65-69

12881

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21692

Males

12828

M65-69

12828

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17705

Males

10931

M65-69

10931

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19592

Males

11720

M65-69

11720

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22674

Males

13144

M65-69

13144

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21170

Males

12368

M65-69

12368

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25469

Males

14470

M65-69

14470

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

24964

Males

14254

M65-69

14254

Passing Analysis

Category:
Athletes Passed
1387
Passed By
1911
Net Change
-524
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21762
5K → 10K111580-469#21762#22231
10K → 15K119308-189#22231#22420
15K → 20K122269-147#22420#22567
20K → Half4138+3#22567#22564
Half → 25K114211-97#22564#22661
25K → 30K196140+56#22661#22605
30K → 20M13134+97#22605#22508
20M → 21M9638+58#22508#22450
21M → 35K1452+143#22450#22307
35K → 23M18711+176#22307#22131
23M → 24M3654-18#22131#22149
24M → 40K6531+34#22149#22115
40K → 25.2M289-87#22115#22202
25.2M → Finish22106-84#22202#22286
TOTALS13871911-524
📊

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