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BOSTON MARATHON 2025

Cristiano Mazzini

Bib: 29450•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
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
9:22/mi
29:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:54/mi
56:47
↑ 79↓ 1380.4%
15K· 9.32 mi
8:43/mi
1:23:53
↑ 67↓ 78
20K· 12.43 mi
8:28/mi
1:50:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:55:49
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
2:15:50
↑ 66↓ 880.2%
30K· 18.64 mi
8:25/mi
2:41:58
↑ 181↓ 1480.2%
20M
8:20/mi
2:53:18
↑ 64↓ 500.2%
21M
8:51/mi
3:02:09
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
3:08:26
↑ 17↓ 861.7%
23M
8:08/mi
3:18:37
↑ 23↓ 630.6%
24M
7:51/mi
3:26:28
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:33:27
↓ 200.3%
25.2M
8:54/mi
3:36:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:00/mi
3:44:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:55:49
Pace8:50 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:51
Pace8:18 /mi
📊Negative Split: 6.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5529:079:2229:07
9:22
-
10K
6.21 mi12:15:3556:479:0827:40
8:54
-0:28
15K
9.32 mi12:42:411:23:539:0027:06
8:43
-0:11
20K
12.43 mi13:08:591:50:118:5226:18
8:28
-0:15
Half
13.11 mi13:14:371:55:498:505:38
8:15
-0:13
25K
15.53 mi13:34:382:15:508:4520:01
8:15
0:00
30K
18.64 mi14:00:462:41:588:4126:08
8:25
+0:10
20M
20.00 mi14:12:062:53:188:4011:20
8:20
-0:05
21M
21.00 mi14:20:573:02:098:408:51
8:51
+0:31
35K
21.75 mi14:27:143:08:268:406:17
8:24
-0:27
23M
23.00 mi14:37:253:18:378:3810:11
8:08
-0:16
24M
24.00 mi14:45:163:26:288:367:51
7:51
-0:17
40K
24.85 mi14:52:153:33:278:356:59
8:10
+0:19
25.2M
25.20 mi14:55:193:36:318:363:04
8:54
+0:44
Finish
26.22 mi15:03:283:44:408:358:09
8:00
-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

7:51 /mi

Average Pace

8:35 /mi

Slowest Pace

9:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:52

57% of race

Time at Steady Pace

1:06:41

30% of race

Time at Slower Pace

29:07

13% of race

Average Pace: 8:34 /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 mi11:47:5529:079:2229:07
9:22
#23812
10K
6.21 mi12:15:3556:479:0827:40
8:54
#22972
15K
9.32 mi12:42:411:23:539:0027:06
8:43
#22276
20K
12.43 mi13:08:591:50:118:5226:18
8:28
#21244
Half
13.11 mi13:14:371:55:498:505:38
8:15
#21101
25K
15.53 mi13:34:382:15:508:4520:01
8:15
#20322
30K
18.64 mi14:00:462:41:588:4126:08
8:25
#19269
20M
20.00 mi14:12:062:53:188:4011:20
8:20
#18820
21M
21.00 mi14:20:573:02:098:408:51
8:51
#18442
35K
21.75 mi14:27:143:08:268:406:17
8:24
#18313
23M
23.00 mi14:37:253:18:378:3810:11
8:08
#17886
24M
24.00 mi14:45:163:26:288:367:51
7:51
#17555
40K
24.85 mi14:52:153:33:278:356:59
8:10
#17325
25.2M
25.20 mi14:55:193:36:318:363:04
8:54
#17225
Finish
26.22 mi15:03:283:44:408:358:09
8:00
#17048
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi23812141551415520600(Top 73%)12770(Top 79%)12770(Top 535%)
10K6.21 mi3.10 mi22972+84013773+38213773+38221937(Top 77%)13312(Top 83%)13312(Top 558%)
15K9.32 mi3.11 mi22276+69613473+30013473+30020600(Top 73%)12770(Top 79%)12770(Top 535%)
20K12.43 mi3.11 mi21244+103213018+45513018+45517966(Top 63%)11590(Top 72%)11590(Top 486%)
Half13.11 mi0.68 mi21101+14312961+5712961+5717582(Top 62%)11424(Top 71%)11424(Top 479%)
25K15.53 mi2.42 mi20322+77912596+36512596+36515632(Top 55%)10498(Top 65%)10498(Top 440%)
30K18.64 mi3.11 mi19269+105312103+49312103+49314185(Top 50%)9667(Top 60%)9667(Top 405%)
20M20.00 mi1.36 mi18820+44911901+20211901+20212717(Top 45%)8860(Top 55%)8860(Top 371%)
21M21.00 mi1.00 mi18442+37811695+20611695+20612573(Top 44%)8622(Top 54%)8622(Top 361%)
35K21.75 mi0.75 mi18313+12911627+6811627+6814792(Top 52%)9612(Top 60%)9612(Top 403%)
23M23.00 mi1.25 mi17886+42711403+22411403+22410912(Top 38%)7689(Top 48%)7689(Top 322%)
24M24.00 mi1.00 mi17555+33111223+18011223+18010128(Top 36%)7210(Top 45%)7210(Top 302%)
40K24.85 mi0.85 mi17325+23011106+11711106+11711292(Top 40%)7688(Top 48%)7688(Top 322%)
25.2M25.20 mi0.35 mi17225+10011048+5811048+5811068(Top 39%)7479(Top 46%)7479(Top 313%)
Finish26.22 mi1.02 mi17048+17710953+9510953+9512810(Top 45%)8424(Top 52%)8424(Top 353%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20600

Males

12770

M45-49

12770

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21937

Males

13312

M45-49

13312

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20600

Males

12770

M45-49

12770

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17966

Males

11590

M45-49

11590

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

17582

Males

11424

M45-49

11424

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15632

Males

10498

M45-49

10498

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14185

Males

9667

M45-49

9667

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12717

Males

8860

M45-49

8860

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12573

Males

8622

M45-49

8622

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14792

Males

9612

M45-49

9612

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10912

Males

7689

M45-49

7689

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10128

Males

7210

M45-49

7210

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11292

Males

7688

M45-49

7688

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11068

Males

7479

M45-49

7479

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12810

Males

8424

M45-49

8424

Passing Analysis

Category:
Athletes Passed
6832
Passed By
68
Net Change
+6764
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23812
5K → 10K87131+840#23812#22972
10K → 15K7026+696#22972#22276
15K → 20K10364+1032#22276#21244
20K → Half1463+143#21244#21101
Half → 25K7790+779#21101#20322
25K → 30K10541+1053#20322#19269
30K → 20M4490+449#19269#18820
20M → 21M3813+378#18820#18442
21M → 35K1345+129#18442#18313
35K → 23M4281+427#18313#17886
23M → 24M3310+331#17886#17555
24M → 40K2333+230#17555#17325
40K → 25.2M1033+100#17325#17225
25.2M → Finish1858+177#17225#17048
TOTALS683268+6764
📊

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