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BOSTON MARATHON 2025

Stefano Giani

Bib: 6618•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Masters (Masters Men)
#0 / 10463
Top 36%
Division (M50-54)
#0 / 1996
Top 36%
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
6:42/mi
20:48
↑ 97↓ 3451.5%
10K· 6.21 mi
6:41/mi
41:35
↑ 79↓ 1380.4%
15K· 9.32 mi
6:33/mi
1:01:56
↑ 67↓ 78
20K· 12.43 mi
6:46/mi
1:22:57
↑ 106↓ 860.1%
Half· 13.11 mi
6:36/mi
1:27:27
↑ 19↓ 370.5%
25K· 15.53 mi
6:50/mi
1:44:01
↑ 66↓ 880.2%
30K· 18.64 mi
7:18/mi
2:06:42
↑ 181↓ 1480.2%
20M
7:43/mi
2:17:11
↑ 64↓ 500.2%
21M
9:06/mi
2:26:17
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:32:15
↑ 17↓ 861.7%
23M
9:33/mi
2:44:13
↑ 23↓ 630.6%
24M
10:24/mi
2:54:37
↓ 821.3%
40K· 24.85 mi
10:36/mi
3:03:41
↓ 200.3%
25.2M
13:26/mi
3:08:19
↑ 13↓ 160.2%
Finish· 26.22 mi
10:09/mi
3:18:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:27
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:51:13
Pace8:29 /mi
📊Positive Split: 27.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0720:486:4220:48
6:42
-
10K
6.21 mi10:46:5441:356:4220:47
6:41
-0:01
15K
9.32 mi11:07:151:01:566:3920:21
6:33
-0:08
20K
12.43 mi11:28:161:22:576:4021:01
6:46
+0:13
Half
13.11 mi11:32:461:27:276:404:30
6:36
-0:10
25K
15.53 mi11:49:201:44:016:4216:34
6:50
+0:14
30K
18.64 mi12:12:012:06:426:4822:41
7:18
+0:28
20M
20.00 mi12:22:302:17:116:5210:29
7:43
+0:25
21M
21.00 mi12:31:362:26:176:589:06
9:06
+1:23
35K
21.75 mi12:37:342:32:157:005:58
7:59
-1:07
23M
23.00 mi12:49:322:44:137:0811:58
9:33
+1:34
24M
24.00 mi12:59:562:54:377:1710:24
10:24
+0:51
40K
24.85 mi13:09:003:03:417:239:04
10:36
+0:12
25.2M
25.20 mi13:13:383:08:197:284:38
13:26
+2:50
Finish
26.22 mi13:23:593:18:407:3510:21
10:09
-3:17

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

6:33 /mi

Average Pace

7:35 /mi

Slowest Pace

13:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:26

33% of race

Time at Steady Pace

1:16:43

39% of race

Time at Slower Pace

55:31

28% of race

Average Pace: 7:35 /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 mi10:26:0720:486:4220:48
6:42
#5414
10K
6.21 mi10:46:5441:356:4220:47
6:41
#5295
15K
9.32 mi11:07:151:01:566:3920:21
6:33
#4761
20K
12.43 mi11:28:161:22:576:4021:01
6:46
#4779
Half
13.11 mi11:32:461:27:276:404:30
6:36
#4747
25K
15.53 mi11:49:201:44:016:4216:34
6:50
#4760
30K
18.64 mi12:12:012:06:426:4822:41
7:18
#5124
20M
20.00 mi12:22:302:17:116:5210:29
7:43
#5442
21M
21.00 mi12:31:362:26:176:589:06
9:06
#5849
35K
21.75 mi12:37:342:32:157:005:58
7:59
#6042
23M
23.00 mi12:49:322:44:137:0811:58
9:33
#6663
24M
24.00 mi12:59:562:54:377:1710:24
10:24
#7544
40K
24.85 mi13:09:003:03:417:239:04
10:36
#8281
25.2M
25.20 mi13:13:383:08:197:284:38
13:26
#8855
Finish
26.22 mi13:23:593:18:407:3510:21
10:09
#9729
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi5414503150313896(Top 14%)3676(Top 23%)3676(Top 184%)
10K6.21 mi3.10 mi5295+1194914+1174914+1175269(Top 19%)4890(Top 30%)4890(Top 245%)
15K9.32 mi3.11 mi4761+5344452+4624452+4623896(Top 14%)3676(Top 23%)3676(Top 184%)
20K12.43 mi3.11 mi4779-184459-74459-74967(Top 17%)4591(Top 29%)4591(Top 230%)
Half13.11 mi0.68 mi4747+324429+304429+304442(Top 16%)4164(Top 26%)4164(Top 209%)
25K15.53 mi2.42 mi4760-134431-24431-25156(Top 18%)4731(Top 29%)4731(Top 237%)
30K18.64 mi3.11 mi5124-3644716-2854716-2856472(Top 23%)5636(Top 35%)5636(Top 282%)
20M20.00 mi1.36 mi5442-3184982-2664982-2668444(Top 30%)6699(Top 42%)6699(Top 336%)
21M21.00 mi1.00 mi5849-4075294-3125294-31214059(Top 49%)9348(Top 58%)9348(Top 468%)
35K21.75 mi0.75 mi6042-1935424-1305424-13012065(Top 42%)8345(Top 52%)8345(Top 418%)
23M23.00 mi1.25 mi6663-6215861-4375861-43718906(Top 67%)11391(Top 71%)11391(Top 571%)
24M24.00 mi1.00 mi7544-8816416-5556416-55522514(Top 79%)13056(Top 81%)13056(Top 654%)
40K24.85 mi0.85 mi8281-7376850-4346850-43422183(Top 78%)12824(Top 80%)12824(Top 642%)
25.2M25.20 mi0.35 mi8855-5747167-3177167-31725578(Top 90%)14517(Top 90%)14517(Top 727%)
Finish26.22 mi1.02 mi9729-8747599-4327599-43223385(Top 82%)13456(Top 84%)13456(Top 674%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3896

Males

3676

M50-54

3676

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5269

Males

4890

M50-54

4890

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3896

Males

3676

M50-54

3676

15K→20K

9.3 - 12.4 mi

Top 17%
×5story building
+106ft-86ft

Overall

4967

Males

4591

M50-54

4591

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4442

Males

4164

M50-54

4164

Half→25K

13.1 - 15.5 mi

Top 18%
×4story building
+66ft-88ft

Overall

5156

Males

4731

M50-54

4731

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6472

Males

5636

M50-54

5636

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8444

Males

6699

M50-54

6699

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

14059

Males

9348

M50-54

9348

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

12065

Males

8345

M50-54

8345

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

18906

Males

11391

M50-54

11391

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22514

Males

13056

M50-54

13056

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22183

Males

12824

M50-54

12824

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25578

Males

14517

M50-54

14517

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23385

Males

13456

M50-54

13456

Passing Analysis

Category:
Athletes Passed
1190
Passed By
5505
Net Change
-4315
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5414
5K → 10K245126+119#5414#5295
10K → 15K5428+534#5295#4761
15K → 20K120138-18#4761#4779
20K → Half4412+32#4779#4747
Half → 25K97110-13#4747#4760
25K → 30K80444-364#4760#5124
30K → 20M16334-318#5124#5442
20M → 21M10417-407#5442#5849
21M → 35K13206-193#5849#6042
35K → 23M13634-621#6042#6663
23M → 24M5886-881#6663#7544
24M → 40K4741-737#7544#8281
40K → 25.2M1575-574#8281#8855
25.2M → Finish0874-874#8855#9729
TOTALS11905505-4315
📊

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