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BOSTON MARATHON 2025

Alberto Tabja Alternatt

Bib: 31353•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:08
Rank: #24837
Start → 5K
30:08 | 9:42/mi
10K· 6.21 mi
1:01:13
Rank: #25076 (-239)
5K → 10K
31:05 | 10:00/mi
15K· 9.32 mi
1:32:49
Rank: #25181 (-105)
10K → 15K
31:36 | 10:10/mi
20K· 12.43 mi
2:04:18
Rank: #25027 (+154)
15K → 20K
31:29 | 10:08/mi
Half· 13.11 mi
2:10:53
Rank: #24958 (+69)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:35:36
Rank: #24754 (+204)
Half → 25K
24:43 | 10:12/mi
30K· 18.64 mi
3:08:35
Rank: #24487 (+267)
25K → 30K
32:59 | 10:37/mi
20M
3:22:58
Rank: #24368 (+119)
30K → 20M
14:23 | 10:35/mi
21M
3:34:09
Rank: #24220 (+148)
20M → 21M
11:11 | 11:11/mi
35K· 21.75 mi
3:41:43
Rank: #24152 (+68)
21M → 35K
7:34 | 10:07/mi
23M
3:54:23
Rank: #23967 (+185)
35K → 23M
12:40 | 10:07/mi
24M
4:04:38
Rank: #23895 (+72)
23M → 24M
10:15 | 10:15/mi
40K· 24.85 mi
4:14:03
Rank: #23868 (+27)
24M → 40K
9:25 | 11:01/mi
25.2M
4:18:16
Rank: #23881 (-13)
40K → 25.2M
4:13 | 12:14/mi
Finish· 26.22 mi
4:29:00
Rank: #23917 (-36)
25.2M → Finish
10:44 | 10:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:53
Pace9:59 /mi
2nd Half
Distance13.11 mi
Time2:18:07
Pace10:32 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5830:089:4230:08
9:42
-
10K
6.21 mi12:25:031:01:139:5131:05
10:00
+0:18
15K
9.32 mi12:56:391:32:499:5731:36
10:10
+0:10
20K
12.43 mi13:28:082:04:1810:0031:29
10:08
-0:02
Half
13.11 mi13:34:432:10:539:596:35
9:39
-0:29
25K
15.53 mi13:59:262:35:3610:0124:43
10:12
+0:33
30K
18.64 mi14:32:253:08:3510:0732:59
10:37
+0:25
20M
20.00 mi14:46:483:22:5810:0914:23
10:35
-0:02
21M
21.00 mi14:57:593:34:0910:1211:11
11:11
+0:36
35K
21.75 mi15:05:333:41:4310:127:34
10:07
-1:04
23M
23.00 mi15:18:133:54:2310:1112:40
10:07
0:00
24M
24.00 mi15:28:284:04:3810:1210:15
10:15
+0:08
40K
24.85 mi15:37:534:14:0310:139:25
11:01
+0:46
25.2M
25.20 mi15:42:064:18:1610:154:13
12:14
+1:13
Finish
26.22 mi15:52:504:29:0010:1610:44
10:32
-1:42

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

9:39 /mi

Average Pace

10:16 /mi

Slowest Pace

12:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

36:43

14% of race

Time at Steady Pace

2:29:22

56% of race

Time at Slower Pace

1:22:55

31% of race

Average Pace: 10:16 /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 mi11:53:5830:089:4230:08
9:42
#24837
10K
6.21 mi12:25:031:01:139:5131:05
10:00
#25076
15K
9.32 mi12:56:391:32:499:5731:36
10:10
#25181
20K
12.43 mi13:28:082:04:1810:0031:29
10:08
#25027
Half
13.11 mi13:34:432:10:539:596:35
9:39
#24958
25K
15.53 mi13:59:262:35:3610:0124:43
10:12
#24754
30K
18.64 mi14:32:253:08:3510:0732:59
10:37
#24487
20M
20.00 mi14:46:483:22:5810:0914:23
10:35
#24368
21M
21.00 mi14:57:593:34:0910:1211:11
11:11
#24220
35K
21.75 mi15:05:333:41:4310:127:34
10:07
#24152
23M
23.00 mi15:18:133:54:2310:1112:40
10:07
#23967
24M
24.00 mi15:28:284:04:3810:1210:15
10:15
#23895
40K
24.85 mi15:37:534:14:0310:139:25
11:01
#23868
25.2M
25.20 mi15:42:064:18:1610:154:13
12:14
#23881
Finish
26.22 mi15:52:504:29:0010:1610:44
10:32
#23917
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24837146461464625353(Top 89%)14858(Top 92%)14858(Top 744%)
10K6.21 mi3.10 mi25076-23914744-9814744-9825334(Top 89%)14847(Top 92%)14847(Top 744%)
15K9.32 mi3.11 mi25181-10514791-4714791-4725353(Top 89%)14858(Top 92%)14858(Top 744%)
20K12.43 mi3.11 mi25027+15414715+7614715+7624486(Top 86%)14446(Top 90%)14446(Top 724%)
Half13.11 mi0.68 mi24958+6914678+3714678+3723964(Top 84%)14219(Top 88%)14219(Top 712%)
25K15.53 mi2.42 mi24754+20414568+11014568+11023710(Top 83%)14056(Top 87%)14056(Top 704%)
30K18.64 mi3.11 mi24487+26714429+13914429+13923199(Top 82%)13702(Top 85%)13702(Top 686%)
20M20.00 mi1.36 mi24368+11914361+6814361+6822655(Top 80%)13369(Top 83%)13369(Top 670%)
21M21.00 mi1.00 mi24220+14814273+8814273+8821860(Top 77%)12913(Top 80%)12913(Top 647%)
35K21.75 mi0.75 mi24152+6814238+3514238+3522214(Top 78%)13018(Top 81%)13018(Top 652%)
23M23.00 mi1.25 mi23967+18514121+11714121+11720869(Top 73%)12332(Top 77%)12332(Top 618%)
24M24.00 mi1.00 mi23895+7214082+3914082+3922086(Top 78%)12855(Top 80%)12855(Top 644%)
40K24.85 mi0.85 mi23868+2714056+2614056+2623181(Top 82%)13328(Top 83%)13328(Top 668%)
25.2M25.20 mi0.35 mi23881-1314055+114055+123650(Top 83%)13590(Top 84%)13590(Top 681%)
Finish26.22 mi1.02 mi23917-3614058-314058-324343(Top 86%)13950(Top 87%)13950(Top 699%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25353

Males

14858

M50-54

14858

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25334

Males

14847

M50-54

14847

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25353

Males

14858

M50-54

14858

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

24486

Males

14446

M50-54

14446

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23964

Males

14219

M50-54

14219

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23710

Males

14056

M50-54

14056

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23199

Males

13702

M50-54

13702

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22655

Males

13369

M50-54

13369

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21860

Males

12913

M50-54

12913

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

22214

Males

13018

M50-54

13018

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

20869

Males

12332

M50-54

12332

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22086

Males

12855

M50-54

12855

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23181

Males

13328

M50-54

13328

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23650

Males

13590

M50-54

13590

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

24343

Males

13950

M50-54

13950

Passing Analysis

Category:
Athletes Passed
1756
Passed By
836
Net Change
+920
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24837
5K → 10K115354-239#24837#25076
10K → 15K105210-105#25076#25181
15K → 20K21157+154#25181#25027
20K → Half734+69#25027#24958
Half → 25K22319+204#24958#24754
25K → 30K28619+267#24754#24487
30K → 20M13415+119#24487#24368
20M → 21M1557+148#24368#24220
21M → 35K768+68#24220#24152
35K → 23M1872+185#24152#23967
23M → 24M8816+72#23967#23895
24M → 40K5427+27#23895#23868
40K → 25.2M1932-13#23868#23881
25.2M → Finish3066-36#23881#23917
TOTALS1756836+920
📊

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