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BOSTON MARATHON 2025

Alexander Bianconi

Bib: 2062•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 47%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
6:50/mi
21:14
↑ 97↓ 3451.5%
10K· 6.21 mi
6:51/mi
42:30
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:04:16
↑ 67↓ 78
20K· 12.43 mi
7:32/mi
1:27:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:32:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:42/mi
1:54:01
↑ 66↓ 880.2%
30K· 18.64 mi
9:01/mi
2:22:03
↑ 181↓ 1480.2%
20M
9:30/mi
2:34:58
↑ 64↓ 500.2%
21M
9:52/mi
2:44:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:51/mi
2:51:27
↑ 17↓ 861.7%
23M
9:12/mi
3:02:58
↑ 23↓ 630.6%
24M
8:37/mi
3:11:35
↓ 821.3%
40K· 24.85 mi
8:52/mi
3:19:10
↓ 200.3%
25.2M
9:14/mi
3:22:21
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:30:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:55
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:57:59
Pace9:00 /mi
📊Positive Split: 27.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:5521:146:5021:14
6:50
-
10K
6.21 mi10:50:1142:306:5021:16
6:51
+0:01
15K
9.32 mi11:11:571:04:166:5421:46
7:00
+0:09
20K
12.43 mi11:35:201:27:397:0323:23
7:32
+0:32
Half
13.11 mi11:40:361:32:557:055:16
7:43
+0:11
25K
15.53 mi12:01:421:54:017:2021:06
8:42
+0:59
30K
18.64 mi12:29:442:22:037:3728:02
9:01
+0:19
20M
20.00 mi12:42:392:34:587:4512:55
9:30
+0:29
21M
21.00 mi12:52:312:44:507:519:52
9:52
+0:22
35K
21.75 mi12:59:082:51:277:536:37
8:51
-1:01
23M
23.00 mi13:10:393:02:587:5711:31
9:12
+0:21
24M
24.00 mi13:19:163:11:357:598:37
8:37
-0:35
40K
24.85 mi13:26:513:19:108:017:35
8:52
+0:15
25.2M
25.20 mi13:30:023:22:218:023:11
9:14
+0:22
Finish
26.22 mi13:38:353:30:548:038:33
8:23
-0:51

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

6:50 /mi

Average Pace

8:03 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:55

44% of race

Time at Steady Pace

1:20:30

38% of race

Time at Slower Pace

37:29

18% of race

Average Pace: 8:03 /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 mi10:28:5521:146:5021:14
6:50
#6599
10K
6.21 mi10:50:1142:306:5021:16
6:51
#6669
15K
9.32 mi11:11:571:04:166:5421:46
7:00
#7032
20K
12.43 mi11:35:201:27:397:0323:23
7:32
#7847
Half
13.11 mi11:40:361:32:557:055:16
7:43
#8088
25K
15.53 mi12:01:421:54:017:2021:06
8:42
#9900
30K
18.64 mi12:29:442:22:037:3728:02
9:01
#11594
20M
20.00 mi12:42:392:34:587:4512:55
9:30
#12306
21M
21.00 mi12:52:312:44:507:519:52
9:52
#12688
35K
21.75 mi12:59:082:51:277:536:37
8:51
#12885
23M
23.00 mi13:10:393:02:587:5711:31
9:12
#13191
24M
24.00 mi13:19:163:11:357:598:37
8:37
#13266
40K
24.85 mi13:26:513:19:108:017:35
8:52
#13351
25.2M
25.20 mi13:30:023:22:218:023:11
9:14
#13334
Finish
26.22 mi13:38:353:30:548:038:33
8:23
#13446
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6599599959997666(Top 27%)6730(Top 42%)6730(Top 119%)
10K6.21 mi3.10 mi6669-706041-426041-426841(Top 24%)6157(Top 38%)6157(Top 109%)
15K9.32 mi3.11 mi7032-3636312-2716312-2717666(Top 27%)6730(Top 42%)6730(Top 119%)
20K12.43 mi3.11 mi7847-8156857-5456857-54510988(Top 39%)8492(Top 53%)8492(Top 151%)
Half13.11 mi0.68 mi8088-2417008-1517008-15113502(Top 48%)9690(Top 60%)9690(Top 172%)
25K15.53 mi2.42 mi9900-18128016-10088016-100818384(Top 65%)11687(Top 73%)11687(Top 207%)
30K18.64 mi3.11 mi11594-16948785-7698785-76917795(Top 63%)11275(Top 70%)11275(Top 200%)
20M20.00 mi1.36 mi12306-7129075-2909075-29019178(Top 68%)11763(Top 73%)11763(Top 208%)
21M21.00 mi1.00 mi12688-3829214-1399214-13917745(Top 62%)11031(Top 68%)11031(Top 196%)
35K21.75 mi0.75 mi12885-1979287-739287-7317436(Top 61%)10786(Top 67%)10786(Top 191%)
23M23.00 mi1.25 mi13191-3069372-859372-8517297(Top 61%)10643(Top 66%)10643(Top 189%)
24M24.00 mi1.00 mi13266-759384-129384-1215229(Top 54%)9682(Top 60%)9682(Top 172%)
40K24.85 mi0.85 mi13351-859393-99393-915543(Top 55%)9677(Top 60%)9677(Top 172%)
25.2M25.20 mi0.35 mi13334+179374+199374+1913043(Top 46%)8488(Top 53%)8488(Top 150%)
Finish26.22 mi1.02 mi13446-1129403-299403-2915480(Top 54%)9695(Top 60%)9695(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7666

Males

6730

M18-39

6730

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6841

Males

6157

M18-39

6157

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7666

Males

6730

M18-39

6730

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10988

Males

8492

M18-39

8492

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13502

Males

9690

M18-39

9690

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18384

Males

11687

M18-39

11687

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17795

Males

11275

M18-39

11275

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

19178

Males

11763

M18-39

11763

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17745

Males

11031

M18-39

11031

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17436

Males

10786

M18-39

10786

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17297

Males

10643

M18-39

10643

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15229

Males

9682

M18-39

9682

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15543

Males

9677

M18-39

9677

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13043

Males

8488

M18-39

8488

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15480

Males

9695

M18-39

9695

Passing Analysis

Category:
Athletes Passed
590
Passed By
7435
Net Change
-6847
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6599
5K → 10K166236-70#6599#6669
10K → 15K54417-363#6669#7032
15K → 20K19834-815#7032#7847
20K → Half4245-241#7847#8088
Half → 25K111823-1812#8088#9900
25K → 30K251717-1694#9900#11594
30K → 20M26738-712#11594#12306
20M → 21M31413-382#12306#12688
21M → 35K20217-197#12688#12885
35K → 23M54360-306#12885#13191
23M → 24M49124-75#13191#13266
24M → 40K49134-85#13266#13351
40K → 25.2M4831+17#13351#13334
25.2M → Finish34146-112#13334#13446
TOTALS5907435-6847
📊

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