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BOSTON MARATHON 2025

Siegfried Welters

Bib: 7023•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 33%
Gender (Male)
#0 / 16105
Top 46%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:11
Rank: #3818
Start → 5K
20:11 | 6:30/mi
10K· 6.21 mi
41:01
Rank: #4517 (-699)
5K → 10K
20:50 | 6:42/mi
15K· 9.32 mi
1:03:15
Rank: #6060 (-1543)
10K → 15K
22:14 | 7:09/mi
20K· 12.43 mi
1:24:52
Rank: #6221 (-161)
15K → 20K
21:37 | 6:57/mi
Half· 13.11 mi
1:29:37
Rank: #6291 (-70)
20K → Half
4:45 | 6:58/mi
25K· 15.53 mi
1:47:24
Rank: #6676 (-385)
Half → 25K
17:47 | 7:20/mi
30K· 18.64 mi
2:13:27
Rank: #7744 (-1068)
25K → 30K
26:03 | 8:23/mi
20M
2:25:25
Rank: #8294 (-550)
30K → 20M
11:58 | 8:48/mi
21M
2:34:39
Rank: #8673 (-379)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
2:40:24
Rank: #8702 (-29)
21M → 35K
5:45 | 7:41/mi
23M
2:51:30
Rank: #9114 (-412)
35K → 23M
11:06 | 8:52/mi
24M
2:59:26
Rank: #9184 (-70)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:06:25
Rank: #9236 (-52)
24M → 40K
6:59 | 8:10/mi
25.2M
3:09:59
Rank: #9428 (-192)
40K → 25.2M
3:34 | 10:21/mi
Finish· 26.22 mi
3:17:13
Rank: #9271 (+157)
25.2M → Finish
7:14 | 7:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:37
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:47:36
Pace8:12 /mi
📊Positive Split: 20.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1020:116:3020:11
6:30
-
10K
6.21 mi11:07:0041:016:3620:50
6:42
+0:12
15K
9.32 mi11:29:141:03:156:4722:14
7:09
+0:27
20K
12.43 mi11:50:511:24:526:5021:37
6:57
-0:12
Half
13.11 mi11:55:361:29:376:504:45
6:58
+0:01
25K
15.53 mi12:13:231:47:246:5517:47
7:20
+0:22
30K
18.64 mi12:39:262:13:277:1026:03
8:23
+1:03
20M
20.00 mi12:51:242:25:257:1611:58
8:48
+0:25
21M
21.00 mi13:00:382:34:397:229:14
9:14
+0:26
35K
21.75 mi13:06:232:40:247:235:45
7:41
-1:33
23M
23.00 mi13:17:292:51:307:2711:06
8:52
+1:11
24M
24.00 mi13:25:252:59:267:297:56
7:56
-0:56
40K
24.85 mi13:32:243:06:257:306:59
8:10
+0:14
25.2M
25.20 mi13:35:583:09:597:323:34
10:21
+2:11
Finish
26.22 mi13:43:123:17:137:327:14
7:06
-3:15

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

6:30 /mi

Average Pace

7:32 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:51

49% of race

Time at Steady Pace

38:27

19% of race

Time at Slower Pace

1:01:55

31% of race

Average Pace: 7:31 /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 mi10:46:1020:116:3020:11
6:30
#3818
10K
6.21 mi11:07:0041:016:3620:50
6:42
#4517
15K
9.32 mi11:29:141:03:156:4722:14
7:09
#6060
20K
12.43 mi11:50:511:24:526:5021:37
6:57
#6221
Half
13.11 mi11:55:361:29:376:504:45
6:58
#6291
25K
15.53 mi12:13:231:47:246:5517:47
7:20
#6676
30K
18.64 mi12:39:262:13:277:1026:03
8:23
#7744
20M
20.00 mi12:51:242:25:257:1611:58
8:48
#8294
21M
21.00 mi13:00:382:34:397:229:14
9:14
#8673
35K
21.75 mi13:06:232:40:247:235:45
7:41
#8702
23M
23.00 mi13:17:292:51:307:2711:06
8:52
#9114
24M
24.00 mi13:25:252:59:267:297:56
7:56
#9184
40K
24.85 mi13:32:243:06:257:306:59
8:10
#9236
25.2M
25.20 mi13:35:583:09:597:323:34
10:21
#9428
Finish
26.22 mi13:43:123:17:137:327:14
7:06
#9271
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3818361336138746(Top 31%)7402(Top 46%)7402(Top 131%)
10K6.21 mi3.10 mi4517-6994245-6324245-6325404(Top 19%)4996(Top 31%)4996(Top 89%)
15K9.32 mi3.11 mi6060-15435549-13045549-13048746(Top 31%)7402(Top 46%)7402(Top 131%)
20K12.43 mi3.11 mi6221-1615659-1105659-1106632(Top 23%)5930(Top 37%)5930(Top 105%)
Half13.11 mi0.68 mi6291-705710-515710-517311(Top 26%)6453(Top 40%)6453(Top 114%)
25K15.53 mi2.42 mi6676-3856004-2946004-2948627(Top 30%)7127(Top 44%)7127(Top 126%)
30K18.64 mi3.11 mi7744-10686718-7146718-71414036(Top 49%)9605(Top 60%)9605(Top 170%)
20M20.00 mi1.36 mi8294-5507026-3087026-30815665(Top 55%)10217(Top 63%)10217(Top 181%)
21M21.00 mi1.00 mi8673-3797208-1827208-18214764(Top 52%)9679(Top 60%)9679(Top 172%)
35K21.75 mi0.75 mi8702-297209-17209-19927(Top 35%)7327(Top 45%)7327(Top 130%)
23M23.00 mi1.25 mi9114-4127400-1917400-19115452(Top 54%)9831(Top 61%)9831(Top 174%)
24M24.00 mi1.00 mi9184-707415-157415-1510744(Top 38%)7548(Top 47%)7548(Top 134%)
40K24.85 mi0.85 mi9236-527400+157400+1511326(Top 40%)7717(Top 48%)7717(Top 137%)
25.2M25.20 mi0.35 mi9428-1927484-847484-8418367(Top 65%)10975(Top 68%)10975(Top 195%)
Finish26.22 mi1.02 mi9271+1577362+1227362+1226367(Top 22%)4967(Top 31%)4967(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8746

Males

7402

M18-39

7402

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5404

Males

4996

M18-39

4996

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8746

Males

7402

M18-39

7402

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6632

Males

5930

M18-39

5930

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7311

Males

6453

M18-39

6453

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8627

Males

7127

M18-39

7127

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

14036

Males

9605

M18-39

9605

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

15665

Males

10217

M18-39

10217

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14764

Males

9679

M18-39

9679

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

9927

Males

7327

M18-39

7327

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15452

Males

9831

M18-39

9831

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10744

Males

7548

M18-39

7548

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11326

Males

7717

M18-39

7717

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18367

Males

10975

M18-39

10975

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6367

Males

4967

M18-39

4967

Passing Analysis

Category:
Athletes Passed
646
Passed By
6099
Net Change
-5453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3818
5K → 10K11710-699#3818#4517
10K → 15K91552-1543#4517#6060
15K → 20K107268-161#6060#6221
20K → Half878-70#6221#6291
Half → 25K51436-385#6291#6676
25K → 30K311099-1068#6676#7744
30K → 20M20570-550#7744#8294
20M → 21M21400-379#8294#8673
21M → 35K4978-29#8673#8702
35K → 23M38450-412#8702#9114
23M → 24M62132-70#9114#9184
24M → 40K65117-52#9184#9236
40K → 25.2M5197-192#9236#9428
25.2M → Finish16912+157#9428#9271
TOTALS6466099-5453
📊

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