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BOSTON MARATHON 2025

Alexander Buchholz

Bib: 2808•M

MD

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Division (M18-39)
#0 / 5642
Top 39%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:01
Rank: #3398
Start → 5K
20:01 | 6:27/mi
10K· 6.21 mi
39:51
Rank: #3158 (+240)
5K → 10K
19:50 | 6:23/mi
15K· 9.32 mi
59:30
Rank: #2884 (+274)
10K → 15K
19:39 | 6:19/mi
20K· 12.43 mi
1:19:11
Rank: #2679 (+205)
15K → 20K
19:41 | 6:20/mi
Half· 13.11 mi
1:23:31
Rank: #2677 (+2)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:38:52
Rank: #2547 (+130)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:59:24
Rank: #2476 (+71)
25K → 30K
20:32 | 6:37/mi
20M
2:08:36
Rank: #2464 (+12)
30K → 20M
9:12 | 6:46/mi
21M
2:15:51
Rank: #2491 (-27)
20M → 21M
7:15 | 7:15/mi
35K· 21.75 mi
2:20:38
Rank: #2449 (+42)
21M → 35K
4:47 | 6:24/mi
23M
2:29:38
Rank: #2543 (-94)
35K → 23M
9:00 | 7:11/mi
24M
2:36:35
Rank: #2594 (-51)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:43:08
Rank: #2714 (-120)
24M → 40K
6:33 | 7:40/mi
25.2M
2:46:08
Rank: #2803 (-89)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
2:53:42
Rank: #2947 (-144)
25.2M → Finish
7:34 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:31
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:30:11
Pace6:53 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:5720:016:2720:01
6:27
-
10K
6.21 mi10:40:4739:516:2519:50
6:23
-0:04
15K
9.32 mi11:00:2659:306:2319:39
6:19
-0:04
20K
12.43 mi11:20:071:19:116:2219:41
6:20
+0:01
Half
13.11 mi11:24:271:23:316:224:20
6:21
+0:01
25K
15.53 mi11:39:481:38:526:2215:21
6:20
-0:01
30K
18.64 mi12:00:201:59:246:2420:32
6:37
+0:17
20M
20.00 mi12:09:322:08:366:269:12
6:46
+0:09
21M
21.00 mi12:16:472:15:516:287:15
7:15
+0:29
35K
21.75 mi12:21:342:20:386:284:47
6:24
-0:51
23M
23.00 mi12:30:342:29:386:309:00
7:11
+0:47
24M
24.00 mi12:37:312:36:356:316:57
6:57
-0:14
40K
24.85 mi12:44:042:43:086:346:33
7:40
+0:43
25.2M
25.20 mi12:47:042:46:086:363:00
8:42
+1:02
Finish
26.22 mi12:54:382:53:426:387:34
7:26
-1:16

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

6:19 /mi

Average Pace

6:38 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:13:23

77% of race

Time at Slower Pace

40:19

23% of race

Average Pace: 6:37 /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 mi10:20:5720:016:2720:01
6:27
#3398
10K
6.21 mi10:40:4739:516:2519:50
6:23
#3158
15K
9.32 mi11:00:2659:306:2319:39
6:19
#2884
20K
12.43 mi11:20:071:19:116:2219:41
6:20
#2679
Half
13.11 mi11:24:271:23:316:224:20
6:21
#2677
25K
15.53 mi11:39:481:38:526:2215:21
6:20
#2547
30K
18.64 mi12:00:201:59:246:2420:32
6:37
#2476
20M
20.00 mi12:09:322:08:366:269:12
6:46
#2464
21M
21.00 mi12:16:472:15:516:287:15
7:15
#2491
35K
21.75 mi12:21:342:20:386:284:47
6:24
#2449
23M
23.00 mi12:30:342:29:386:309:00
7:11
#2543
24M
24.00 mi12:37:312:36:356:316:57
6:57
#2594
40K
24.85 mi12:44:042:43:086:346:33
7:40
#2714
25.2M
25.20 mi12:47:042:46:086:363:00
8:42
#2803
Finish
26.22 mi12:54:382:53:426:387:34
7:26
#2947
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3398322732272487(Top 9%)2372(Top 15%)2372(Top 42%)
10K6.21 mi3.10 mi3158+2403003+2243003+2242929(Top 10%)2788(Top 17%)2788(Top 49%)
15K9.32 mi3.11 mi2884+2742748+2552748+2552487(Top 9%)2372(Top 15%)2372(Top 42%)
20K12.43 mi3.11 mi2679+2052554+1942554+1942190(Top 8%)2089(Top 13%)2089(Top 37%)
Half13.11 mi0.68 mi2677+22553+12553+12773(Top 10%)2649(Top 16%)2649(Top 47%)
25K15.53 mi2.42 mi2547+1302431+1222431+1222023(Top 7%)1927(Top 12%)1927(Top 34%)
30K18.64 mi3.11 mi2476+712363+682363+682443(Top 9%)2313(Top 14%)2313(Top 41%)
20M20.00 mi1.36 mi2464+122350+132350+132760(Top 10%)2585(Top 16%)2585(Top 46%)
21M21.00 mi1.00 mi2491-272376-262376-263344(Top 12%)3066(Top 19%)3066(Top 54%)
35K21.75 mi0.75 mi2449+422336+402336+401997(Top 7%)1871(Top 12%)1871(Top 33%)
23M23.00 mi1.25 mi2543-942420-842420-844768(Top 17%)4144(Top 26%)4144(Top 73%)
24M24.00 mi1.00 mi2594-512461-412461-414323(Top 15%)3775(Top 23%)3775(Top 67%)
40K24.85 mi0.85 mi2714-1202572-1112572-1117778(Top 27%)5853(Top 36%)5853(Top 104%)
25.2M25.20 mi0.35 mi2803-892654-822654-829875(Top 35%)6851(Top 43%)6851(Top 121%)
Finish26.22 mi1.02 mi2947-1442782-1282782-1288624(Top 30%)6230(Top 39%)6230(Top 110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2487

Males

2372

M18-39

2372

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2929

Males

2788

M18-39

2788

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2487

Males

2372

M18-39

2372

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2190

Males

2089

M18-39

2089

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2773

Males

2649

M18-39

2649

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2023

Males

1927

M18-39

1927

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2443

Males

2313

M18-39

2313

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2760

Males

2585

M18-39

2585

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3344

Males

3066

M18-39

3066

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1997

Males

1871

M18-39

1871

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4768

Males

4144

M18-39

4144

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4323

Males

3775

M18-39

3775

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7778

Males

5853

M18-39

5853

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9875

Males

6851

M18-39

6851

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8624

Males

6230

M18-39

6230

Passing Analysis

Category:
Athletes Passed
1271
Passed By
820
Net Change
+451
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3398
5K → 10K28040+240#3398#3158
10K → 15K2828+274#3158#2884
15K → 20K21510+205#2884#2679
20K → Half1715+2#2679#2677
Half → 25K1399+130#2677#2547
25K → 30K12049+71#2547#2476
30K → 20M5038+12#2476#2464
20M → 21M3562-27#2464#2491
21M → 35K508+42#2491#2449
35K → 23M33127-94#2449#2543
23M → 24M2576-51#2543#2594
24M → 40K15135-120#2594#2714
40K → 25.2M291-89#2714#2803
25.2M → Finish8152-144#2803#2947
TOTALS1271820+451
📊

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