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BOSTON MARATHON 2025

Grzegorz Albrecht

Bib: 7939•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 35%
Masters (Masters Men)
#0 / 10463
Top 21%
Division (M40-44)
#0 / 2247
Top 48%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:51
Rank: #8064
Start → 5K
21:51 | 7:02/mi
10K· 6.21 mi
43:27
Rank: #7793 (+271)
5K → 10K
21:36 | 6:57/mi
15K· 9.32 mi
1:04:54
Rank: #7514 (+279)
10K → 15K
21:27 | 6:54/mi
20K· 12.43 mi
1:26:45
Rank: #7364 (+150)
15K → 20K
21:51 | 7:02/mi
Half· 13.11 mi
1:31:28
Rank: #7333 (+31)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:48:41
Rank: #7241 (+92)
Half → 25K
17:13 | 7:06/mi
30K· 18.64 mi
2:11:51
Rank: #7168 (+73)
25K → 30K
23:10 | 7:27/mi
20M
2:22:10
Rank: #7118 (+50)
30K → 20M
10:19 | 7:36/mi
21M
2:30:17
Rank: #7101 (+17)
20M → 21M
8:07 | 8:07/mi
35K· 21.75 mi
2:35:44
Rank: #7073 (+28)
21M → 35K
5:27 | 7:17/mi
23M
2:44:52
Rank: #6887 (+186)
35K → 23M
9:08 | 7:18/mi
24M
2:51:58
Rank: #6737 (+150)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:58:07
Rank: #6615 (+122)
24M → 40K
6:09 | 7:12/mi
25.2M
3:00:50
Rank: #6562 (+53)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:07:52
Rank: #6449 (+113)
25.2M → Finish
7:02 | 6:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:28
Pace6:59 /mi
2nd Half
Distance13.11 mi
Time1:36:24
Pace7:21 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:4521:517:0221:51
7:02
-
10K
6.21 mi10:52:2143:277:0021:36
6:57
-0:05
15K
9.32 mi11:13:481:04:546:5821:27
6:54
-0:03
20K
12.43 mi11:35:391:26:456:5921:51
7:02
+0:08
Half
13.11 mi11:40:221:31:286:594:43
6:55
-0:07
25K
15.53 mi11:57:351:48:417:0017:13
7:06
+0:11
30K
18.64 mi12:20:452:11:517:0423:10
7:27
+0:21
20M
20.00 mi12:31:042:22:107:0610:19
7:36
+0:09
21M
21.00 mi12:39:112:30:177:098:07
8:07
+0:31
35K
21.75 mi12:44:382:35:447:105:27
7:17
-0:50
23M
23.00 mi12:53:462:44:527:109:08
7:18
+0:01
24M
24.00 mi13:00:522:51:587:107:06
7:06
-0:12
40K
24.85 mi13:07:012:58:077:106:09
7:12
+0:06
25.2M
25.20 mi13:09:443:00:507:112:43
7:53
+0:41
Finish
26.22 mi13:16:463:07:527:107:02
6:54
-0:59

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

6:54 /mi

Average Pace

7:10 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:43

89% of race

Time at Steady Pace

21:09

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:10 /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 mi10:30:4521:517:0221:51
7:02
#8064
10K
6.21 mi10:52:2143:277:0021:36
6:57
#7793
15K
9.32 mi11:13:481:04:546:5821:27
6:54
#7514
20K
12.43 mi11:35:391:26:456:5921:51
7:02
#7364
Half
13.11 mi11:40:221:31:286:594:43
6:55
#7333
25K
15.53 mi11:57:351:48:417:0017:13
7:06
#7241
30K
18.64 mi12:20:452:11:517:0423:10
7:27
#7168
20M
20.00 mi12:31:042:22:107:0610:19
7:36
#7118
21M
21.00 mi12:39:112:30:177:098:07
8:07
#7101
35K
21.75 mi12:44:382:35:447:105:27
7:17
#7073
23M
23.00 mi12:53:462:44:527:109:08
7:18
#6887
24M
24.00 mi13:00:522:51:587:107:06
7:06
#6737
40K
24.85 mi13:07:012:58:077:106:09
7:12
#6615
25.2M
25.20 mi13:09:443:00:507:112:43
7:53
#6562
Finish
26.22 mi13:16:463:07:527:107:02
6:54
#6449
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8064704070406979(Top 25%)6232(Top 39%)6232(Top 277%)
10K6.21 mi3.10 mi7793+2716848+1926848+1927616(Top 27%)6723(Top 42%)6723(Top 299%)
15K9.32 mi3.11 mi7514+2796654+1946654+1946979(Top 25%)6232(Top 39%)6232(Top 277%)
20K12.43 mi3.11 mi7364+1506532+1226532+1227075(Top 25%)6262(Top 39%)6262(Top 279%)
Half13.11 mi0.68 mi7333+316511+216511+216967(Top 25%)6187(Top 38%)6187(Top 275%)
25K15.53 mi2.42 mi7241+926426+856426+856974(Top 25%)6099(Top 38%)6099(Top 271%)
30K18.64 mi3.11 mi7168+736325+1016325+1017421(Top 26%)6226(Top 39%)6226(Top 277%)
20M20.00 mi1.36 mi7118+506267+586267+587596(Top 27%)6198(Top 38%)6198(Top 276%)
21M21.00 mi1.00 mi7101+176222+456222+458022(Top 28%)6257(Top 39%)6257(Top 278%)
35K21.75 mi0.75 mi7073+286181+416181+417111(Top 25%)5763(Top 36%)5763(Top 256%)
23M23.00 mi1.25 mi6887+1866021+1606021+1605445(Top 19%)4634(Top 29%)4634(Top 206%)
24M24.00 mi1.00 mi6737+1505887+1345887+1345224(Top 18%)4414(Top 27%)4414(Top 196%)
40K24.85 mi0.85 mi6615+1225773+1145773+1145017(Top 18%)4227(Top 26%)4227(Top 188%)
25.2M25.20 mi0.35 mi6562+535727+465727+465298(Top 19%)4319(Top 27%)4319(Top 192%)
Finish26.22 mi1.02 mi6449+1135625+1025625+1025107(Top 18%)4195(Top 26%)4195(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6979

Males

6232

M40-44

6232

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7616

Males

6723

M40-44

6723

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6979

Males

6232

M40-44

6232

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7075

Males

6262

M40-44

6262

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6967

Males

6187

M40-44

6187

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6974

Males

6099

M40-44

6099

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7421

Males

6226

M40-44

6226

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7596

Males

6198

M40-44

6198

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

8022

Males

6257

M40-44

6257

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7111

Males

5763

M40-44

5763

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5445

Males

4634

M40-44

4634

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5224

Males

4414

M40-44

4414

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5017

Males

4227

M40-44

4227

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5298

Males

4319

M40-44

4319

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

5107

Males

4195

M40-44

4195

Passing Analysis

Category:
Athletes Passed
2247
Passed By
632
Net Change
+1615
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8064
5K → 10K37099+271#8064#7793
10K → 15K31435+279#7793#7514
15K → 20K20050+150#7514#7364
20K → Half4211+31#7364#7333
Half → 25K15361+92#7333#7241
25K → 30K211138+73#7241#7168
30K → 20M11767+50#7168#7118
20M → 21M9881+17#7118#7101
21M → 35K6537+28#7101#7073
35K → 23M1926+186#7073#6887
23M → 24M16212+150#6887#6737
24M → 40K1297+122#6737#6615
40K → 25.2M596+53#6615#6562
25.2M → Finish13522+113#6562#6449
TOTALS2247632+1615
📊

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