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BOSTON MARATHON 2025

Leandro Antonio Zanchi

Bib: 15502 M BR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:56/mi
24:38
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:17/mi
50:23
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:12/mi
1:15:51
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:41/mi
1:42:51
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:18/mi
1:48:31
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:19/mi
2:08:41
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:32/mi
2:35:13
↑ 181↓ 1480.2%
138 ft elev
20M
8:24/mi
2:46:38
↑ 64↓ 500.2%
148 ft elev
21M
8:37/mi
2:55:15
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:03/mi
3:01:16
↑ 17↓ 861.7%
156 ft elev
23M
8:26/mi
3:11:50
↑ 23↓ 630.6%
116 ft elev
24M
8:00/mi
3:19:50
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:10/mi
3:26:49
↓ 200.3%
20 ft elev
25.2M
8:45/mi
3:29:50
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:50/mi
3:37:49
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:31
Pace8:17 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:18
Pace8:20 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1024:387:5624:38
7:56
-
10K
6.21 mi11:21:5550:238:0725:45
8:17
+0:21
15K
9.32 mi11:47:231:15:518:0825:28
8:12
-0:05
20K
12.43 mi12:14:231:42:518:1727:00
8:41
+0:29
Half
13.11 mi12:20:031:48:318:175:40
8:18
-0:23
25K
15.53 mi12:40:132:08:418:1720:10
8:19
+0:01
30K
18.64 mi13:06:452:35:138:2026:32
8:32
+0:13
20M
20.00 mi13:18:102:46:388:2011:25
8:24
-0:08
21M
21.00 mi13:26:472:55:158:218:37
8:37
+0:13
35K
21.75 mi13:32:483:01:168:206:01
8:03
-0:34
23M
23.00 mi13:43:223:11:508:2010:34
8:26
+0:23
24M
24.00 mi13:51:223:19:508:208:00
8:00
-0:26
40K
24.85 mi13:58:213:26:498:196:59
8:10
+0:10
25.2M
25.20 mi14:01:223:29:508:203:01
8:45
+0:35
Finish
26.22 mi14:09:213:37:498:197:59
7:50
-0:55

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

7:50 /mi

Average Pace

8:19 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:11

82% of race

Time at Steady Pace

38:38

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:18 /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 mi10:56:1024:387:5624:38
7:56
#15979
10K
6.21 mi11:21:5550:238:0725:45
8:17
#17313
15K
9.32 mi11:47:231:15:518:0825:28
8:12
#17341
20K
12.43 mi12:14:231:42:518:1727:00
8:41
#17845
Half
13.11 mi12:20:031:48:318:175:40
8:18
#17841
25K
15.53 mi12:40:132:08:418:1720:10
8:19
#17497
30K
18.64 mi13:06:452:35:138:2026:32
8:32
#16991
20M
20.00 mi13:18:102:46:388:2011:25
8:24
#16711
21M
21.00 mi13:26:472:55:158:218:37
8:37
#16357
35K
21.75 mi13:32:483:01:168:206:01
8:03
#16202
23M
23.00 mi13:43:223:11:508:2010:34
8:26
#15955
24M
24.00 mi13:51:223:19:508:208:00
8:00
#15729
40K
24.85 mi13:58:213:26:498:196:59
8:10
#15554
25.2M
25.20 mi14:01:223:29:508:203:01
8:45
#15466
Finish
26.22 mi14:09:213:37:498:197:59
7:50
#15338
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15979107941079417357(Top 61%)11374(Top 71%)11374(Top 690%)
10K6.21 mi3.10 mi17313-133411345-55111345-55118453(Top 65%)11825(Top 73%)11825(Top 718%)
15K9.32 mi3.11 mi17341-2811371-2611371-2617357(Top 61%)11374(Top 71%)11374(Top 690%)
20K12.43 mi3.11 mi17845-50411547-17611547-17619354(Top 68%)12188(Top 76%)12188(Top 740%)
Half13.11 mi0.68 mi17841+411535+1211535+1217904(Top 63%)11574(Top 72%)11574(Top 702%)
25K15.53 mi2.42 mi17497+34411391+14411391+14416011(Top 56%)10646(Top 66%)10646(Top 646%)
30K18.64 mi3.11 mi16991+50611130+26111130+26115000(Top 53%)10053(Top 62%)10053(Top 610%)
20M20.00 mi1.36 mi16711+28010996+13410996+13413160(Top 46%)9069(Top 56%)9069(Top 550%)
21M21.00 mi1.00 mi16357+35410808+18810808+18811204(Top 39%)7989(Top 50%)7989(Top 485%)
35K21.75 mi0.75 mi16202+15510723+8510723+8512537(Top 44%)8598(Top 53%)8598(Top 522%)
23M23.00 mi1.25 mi15955+24710566+15710566+15712921(Top 45%)8667(Top 54%)8667(Top 526%)
24M24.00 mi1.00 mi15729+22610458+10810458+10811237(Top 40%)7790(Top 48%)7790(Top 473%)
40K24.85 mi0.85 mi15554+17510356+10210356+10211365(Top 40%)7756(Top 48%)7756(Top 471%)
25.2M25.20 mi0.35 mi15466+8810303+5310303+5310300(Top 36%)7124(Top 44%)7124(Top 432%)
Finish26.22 mi1.02 mi15338+12810229+7410229+7411679(Top 41%)7868(Top 49%)7868(Top 477%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17357

Males

11374

M55-59

11374

5K→10K

3.1 - 6.2 mi

Top 65%
×5story building
+79ft-138ft

Overall

18453

Males

11825

M55-59

11825

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17357

Males

11374

M55-59

11374

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19354

Males

12188

M55-59

12188

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17904

Males

11574

M55-59

11574

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

16011

Males

10646

M55-59

10646

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15000

Males

10053

M55-59

10053

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

13160

Males

9069

M55-59

9069

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

11204

Males

7989

M55-59

7989

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12537

Males

8598

M55-59

8598

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12921

Males

8667

M55-59

8667

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11237

Males

7790

M55-59

7790

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11365

Males

7756

M55-59

7756

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10300

Males

7124

M55-59

7124

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11679

Males

7868

M55-59

7868

Passing Analysis

Category:
Athletes Passed
2939
Passed By
2298
Net Change
+641
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15979
5K → 10K441378-1334#15979#17313
10K → 15K197225-28#17313#17341
15K → 20K76580-504#17341#17845
20K → Half3935+4#17845#17841
Half → 25K36117+344#17841#17497
25K → 30K53327+506#17497#16991
30K → 20M2844+280#16991#16711
20M → 21M3551+354#16711#16357
21M → 35K1572+155#16357#16202
35K → 23M2514+247#16202#15955
23M → 24M2293+226#15955#15729
24M → 40K1838+175#15729#15554
40K → 25.2M924+88#15554#15466
25.2M → Finish13810+128#15466#15338
TOTALS29392298+641
📊

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