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BOSTON MARATHON 2025

Darren Irwin

Bib: 2853•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Masters (Masters Men)
#0 / 10463
Top 3%
Division (M45-49)
#0 / 2386
Top 3%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:02
Rank: #1507
Start → 5K
19:02 | 6:08/mi
10K· 6.21 mi
38:03
Rank: #1532 (-25)
5K → 10K
19:01 | 6:07/mi
15K· 9.32 mi
57:06
Rank: #1515 (+17)
10K → 15K
19:03 | 6:08/mi
20K· 12.43 mi
1:16:29
Rank: #1549 (-34)
15K → 20K
19:23 | 6:14/mi
Half· 13.11 mi
1:20:35
Rank: #1523 (+26)
20K → Half
4:06 | 6:01/mi
25K· 15.53 mi
1:35:34
Rank: #1474 (+49)
Half → 25K
14:59 | 6:11/mi
30K· 18.64 mi
1:55:13
Rank: #1405 (+69)
25K → 30K
19:39 | 6:19/mi
20M
2:04:18
Rank: #1444 (-39)
30K → 20M
9:05 | 6:41/mi
21M
2:11:26
Rank: #1484 (-40)
20M → 21M
7:08 | 7:08/mi
35K· 21.75 mi
2:16:17
Rank: #1501 (-17)
21M → 35K
4:51 | 6:29/mi
23M
2:25:12
Rank: #1603 (-102)
35K → 23M
8:55 | 7:07/mi
24M
2:32:15
Rank: #1706 (-103)
23M → 24M
7:03 | 7:03/mi
40K· 24.85 mi
2:38:31
Rank: #1818 (-112)
24M → 40K
6:16 | 7:20/mi
25.2M
2:41:22
Rank: #1875 (-57)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
2:48:33
Rank: #1972 (-97)
25.2M → Finish
7:11 | 7:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:35
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:27:58
Pace6:43 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4919:026:0819:02
6:08
-
10K
6.21 mi10:39:5038:036:0719:01
6:07
-0:01
15K
9.32 mi10:58:5357:066:0819:03
6:08
+0:01
20K
12.43 mi11:18:161:16:296:0919:23
6:14
+0:06
Half
13.11 mi11:22:221:20:356:094:06
6:01
-0:13
25K
15.53 mi11:37:211:35:346:0914:59
6:11
+0:10
30K
18.64 mi11:57:001:55:136:1119:39
6:19
+0:08
20M
20.00 mi12:06:052:04:186:139:05
6:41
+0:22
21M
21.00 mi12:13:132:11:266:167:08
7:08
+0:27
35K
21.75 mi12:18:042:16:176:164:51
6:29
-0:39
23M
23.00 mi12:26:592:25:126:198:55
7:07
+0:38
24M
24.00 mi12:34:022:32:156:217:03
7:03
-0:04
40K
24.85 mi12:40:182:38:316:236:16
7:20
+0:17
25.2M
25.20 mi12:43:092:41:226:242:51
8:16
+0:56
Finish
26.22 mi12:50:202:48:336:267:11
7:03
-1:13

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

6:01 /mi

Average Pace

6:26 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:12

36% of race

Time at Steady Pace

1:07:57

40% of race

Time at Slower Pace

39:24

23% of race

Average Pace: 6:26 /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 mi10:20:4919:026:0819:02
6:08
#1507
10K
6.21 mi10:39:5038:036:0719:01
6:07
#1532
15K
9.32 mi10:58:5357:066:0819:03
6:08
#1515
20K
12.43 mi11:18:161:16:296:0919:23
6:14
#1549
Half
13.11 mi11:22:221:20:356:094:06
6:01
#1523
25K
15.53 mi11:37:211:35:346:0914:59
6:11
#1474
30K
18.64 mi11:57:001:55:136:1119:39
6:19
#1405
20M
20.00 mi12:06:052:04:186:139:05
6:41
#1444
21M
21.00 mi12:13:132:11:266:167:08
7:08
#1484
35K
21.75 mi12:18:042:16:176:164:51
6:29
#1501
23M
23.00 mi12:26:592:25:126:198:55
7:07
#1603
24M
24.00 mi12:34:022:32:156:217:03
7:03
#1706
40K
24.85 mi12:40:182:38:316:236:16
7:20
#1818
25.2M
25.20 mi12:43:092:41:226:242:51
8:16
#1875
Finish
26.22 mi12:50:202:48:336:267:11
7:03
#1972
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1507143714371526(Top 5%)1451(Top 9%)1451(Top 61%)
10K6.21 mi3.10 mi1532-251456-191456-191549(Top 5%)1472(Top 9%)1472(Top 62%)
15K9.32 mi3.11 mi1515+171439+171439+171526(Top 5%)1451(Top 9%)1451(Top 61%)
20K12.43 mi3.11 mi1549-341471-321471-321738(Top 6%)1652(Top 10%)1652(Top 69%)
Half13.11 mi0.68 mi1523+261447+241447+241204(Top 4%)1141(Top 7%)1141(Top 48%)
25K15.53 mi2.42 mi1474+491398+491398+491374(Top 5%)1303(Top 8%)1303(Top 55%)
30K18.64 mi3.11 mi1405+691329+691329+691287(Top 5%)1215(Top 8%)1215(Top 51%)
20M20.00 mi1.36 mi1444-391364-351364-352365(Top 8%)2232(Top 14%)2232(Top 94%)
21M21.00 mi1.00 mi1484-401404-401404-402803(Top 10%)2597(Top 16%)2597(Top 109%)
35K21.75 mi0.75 mi1501-171419-151419-152355(Top 8%)2198(Top 14%)2198(Top 92%)
23M23.00 mi1.25 mi1603-1021517-981517-984425(Top 16%)3892(Top 24%)3892(Top 163%)
24M24.00 mi1.00 mi1706-1031616-991616-994868(Top 17%)4156(Top 26%)4156(Top 174%)
40K24.85 mi0.85 mi1818-1121721-1051721-1055758(Top 20%)4691(Top 29%)4691(Top 197%)
25.2M25.20 mi0.35 mi1875-571777-561777-567301(Top 26%)5466(Top 34%)5466(Top 229%)
Finish26.22 mi1.02 mi1972-971868-911868-916012(Top 21%)4720(Top 29%)4720(Top 198%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1526

Males

1451

M45-49

1451

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1549

Males

1472

M45-49

1472

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1526

Males

1451

M45-49

1451

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1738

Males

1652

M45-49

1652

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1204

Males

1141

M45-49

1141

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1374

Males

1303

M45-49

1303

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1287

Males

1215

M45-49

1215

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2365

Males

2232

M45-49

2232

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2803

Males

2597

M45-49

2597

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2355

Males

2198

M45-49

2198

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4425

Males

3892

M45-49

3892

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4868

Males

4156

M45-49

4156

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5758

Males

4691

M45-49

4691

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7301

Males

5466

M45-49

5466

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

6012

Males

4720

M45-49

4720

Passing Analysis

Category:
Athletes Passed
457
Passed By
922
Net Change
-465
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1507
5K → 10K6287-25#1507#1532
10K → 15K6245+17#1532#1515
15K → 20K4478-34#1515#1549
20K → Half271+26#1549#1523
Half → 25K6516+49#1523#1474
25K → 30K9324+69#1474#1405
30K → 20M2261-39#1405#1444
20M → 21M1656-40#1444#1484
21M → 35K1835-17#1484#1501
35K → 23M24126-102#1501#1603
23M → 24M6109-103#1603#1706
24M → 40K5117-112#1706#1818
40K → 25.2M461-57#1818#1875
25.2M → Finish9106-97#1875#1972
TOTALS457922-465
📊

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