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BOSTON MARATHON 2025

Leonardo Giannini

Bib: 1009•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:55
Rank: #549
Start → 5K
17:55 | 5:46/mi
10K· 6.21 mi
35:56
Rank: #572 (-23)
5K → 10K
18:01 | 5:48/mi
15K· 9.32 mi
54:22
Rank: #626 (-54)
10K → 15K
18:26 | 5:56/mi
20K· 12.43 mi
1:13:02
Rank: #681 (-55)
15K → 20K
18:40 | 6:00/mi
Half· 13.11 mi
1:17:04
Rank: #691 (-10)
20K → Half
4:02 | 5:55/mi
25K· 15.53 mi
1:31:54
Rank: #736 (-45)
Half → 25K
14:50 | 6:07/mi
30K· 18.64 mi
1:51:30
Rank: #787 (-51)
25K → 30K
19:36 | 6:19/mi
20M
2:00:18
Rank: #799 (-12)
30K → 20M
8:48 | 6:29/mi
21M
2:07:11
Rank: #823 (-24)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:11:54
Rank: #830 (-7)
21M → 35K
4:43 | 6:18/mi
23M
2:20:08
Rank: #853 (-23)
35K → 23M
8:14 | 6:35/mi
24M
2:26:28
Rank: #859 (-6)
23M → 24M
6:20 | 6:20/mi
40K· 24.85 mi
2:32:02
Rank: #877 (-18)
24M → 40K
5:34 | 6:31/mi
25.2M
2:34:32
Rank: #889 (-12)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:41:00
Rank: #906 (-17)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:04
Pace5:53 /mi
2nd Half
Distance13.11 mi
Time1:23:56
Pace6:24 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1617:555:4617:55
5:46
-
10K
6.21 mi10:36:1735:565:4718:01
5:48
+0:02
15K
9.32 mi10:54:4354:225:5018:26
5:56
+0:08
20K
12.43 mi11:13:231:13:025:5318:40
6:00
+0:04
Half
13.11 mi11:17:251:17:045:534:02
5:55
-0:05
25K
15.53 mi11:32:151:31:545:5514:50
6:07
+0:12
30K
18.64 mi11:51:511:51:305:5919:36
6:19
+0:12
20M
20.00 mi12:00:392:00:186:018:48
6:29
+0:10
21M
21.00 mi12:07:322:07:116:036:53
6:53
+0:24
35K
21.75 mi12:12:152:11:546:044:43
6:18
-0:35
23M
23.00 mi12:20:292:20:086:068:14
6:35
+0:17
24M
24.00 mi12:26:492:26:286:066:20
6:20
-0:15
40K
24.85 mi12:32:232:32:026:075:34
6:31
+0:11
25.2M
25.20 mi12:34:532:34:326:082:30
7:15
+0:44
Finish
26.22 mi12:41:212:41:006:096:28
6:21
-0:54

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

5:46 /mi

Average Pace

6:09 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:54

57% of race

Time at Steady Pace

45:55

29% of race

Time at Slower Pace

23:11

14% of race

Average Pace: 6:08 /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 mi10:18:1617:555:4617:55
5:46
#549
10K
6.21 mi10:36:1735:565:4718:01
5:48
#572
15K
9.32 mi10:54:4354:225:5018:26
5:56
#626
20K
12.43 mi11:13:231:13:025:5318:40
6:00
#681
Half
13.11 mi11:17:251:17:045:534:02
5:55
#691
25K
15.53 mi11:32:151:31:545:5514:50
6:07
#736
30K
18.64 mi11:51:511:51:305:5919:36
6:19
#787
20M
20.00 mi12:00:392:00:186:018:48
6:29
#799
21M
21.00 mi12:07:322:07:116:036:53
6:53
#823
35K
21.75 mi12:12:152:11:546:044:43
6:18
#830
23M
23.00 mi12:20:292:20:086:068:14
6:35
#853
24M
24.00 mi12:26:492:26:286:066:20
6:20
#859
40K
24.85 mi12:32:232:32:026:075:34
6:31
#877
25.2M
25.20 mi12:34:532:34:326:082:30
7:15
#889
Finish
26.22 mi12:41:212:41:006:096:28
6:21
#906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi549510510832(Top 3%)780(Top 5%)780(Top 14%)
10K6.21 mi3.10 mi572-23534-24534-24608(Top 2%)569(Top 4%)569(Top 10%)
15K9.32 mi3.11 mi626-54581-47581-47832(Top 3%)780(Top 5%)780(Top 14%)
20K12.43 mi3.11 mi681-55634-53634-53881(Top 3%)830(Top 5%)830(Top 15%)
Half13.11 mi0.68 mi691-10643-9643-9873(Top 3%)825(Top 5%)825(Top 15%)
25K15.53 mi2.42 mi736-45688-45688-451149(Top 4%)1083(Top 7%)1083(Top 19%)
30K18.64 mi3.11 mi787-51738-50738-501227(Top 4%)1158(Top 7%)1158(Top 21%)
20M20.00 mi1.36 mi799-12749-11749-111518(Top 5%)1433(Top 9%)1433(Top 25%)
21M21.00 mi1.00 mi823-24772-23772-231790(Top 6%)1685(Top 10%)1685(Top 30%)
35K21.75 mi0.75 mi830-7779-7779-71587(Top 6%)1487(Top 9%)1487(Top 26%)
23M23.00 mi1.25 mi853-23800-21800-211716(Top 6%)1604(Top 10%)1604(Top 28%)
24M24.00 mi1.00 mi859-6805-5805-51386(Top 5%)1297(Top 8%)1297(Top 23%)
40K24.85 mi0.85 mi877-18822-17822-171609(Top 6%)1485(Top 9%)1485(Top 26%)
25.2M25.20 mi0.35 mi889-12832-10832-102261(Top 8%)2014(Top 13%)2014(Top 36%)
Finish26.22 mi1.02 mi906-17849-17849-172049(Top 7%)1876(Top 12%)1876(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

832

Males

780

M18-39

780

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

608

Males

569

M18-39

569

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

832

Males

780

M18-39

780

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

881

Males

830

M18-39

830

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

873

Males

825

M18-39

825

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1149

Males

1083

M18-39

1083

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1227

Males

1158

M18-39

1158

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1518

Males

1433

M18-39

1433

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1790

Males

1685

M18-39

1685

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1587

Males

1487

M18-39

1487

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1716

Males

1604

M18-39

1604

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1386

Males

1297

M18-39

1297

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1609

Males

1485

M18-39

1485

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2261

Males

2014

M18-39

2014

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2049

Males

1876

M18-39

1876

Passing Analysis

Category:
Athletes Passed
164
Passed By
521
Net Change
-357
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#549
5K → 10K2245-23#549#572
10K → 15K559-54#572#626
15K → 20K1267-55#626#681
20K → Half212-10#681#691
Half → 25K1560-45#691#736
25K → 30K1667-51#736#787
30K → 20M1628-12#787#799
20M → 21M1135-24#799#823
21M → 35K1219-7#823#830
35K → 23M1235-23#830#853
23M → 24M1117-6#853#859
24M → 40K1634-18#859#877
40K → 25.2M416-12#877#889
25.2M → Finish1027-17#889#906
TOTALS164521-357
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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