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BOSTON MARATHON 2025

Alec Parcell

Bib: 2386•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 7%
Division (M18-39)
#0 / 5642
Top 17%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:04
Rank: #1549
Start → 5K
19:04 | 6:08/mi
10K· 6.21 mi
37:46
Rank: #1339 (+210)
5K → 10K
18:42 | 6:01/mi
15K· 9.32 mi
56:35
Rank: #1273 (+66)
10K → 15K
18:49 | 6:03/mi
20K· 12.43 mi
1:15:38
Rank: #1267 (+6)
15K → 20K
19:03 | 6:08/mi
Half· 13.11 mi
1:19:47
Rank: #1272 (-5)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:35:15
Rank: #1396 (-124)
Half → 25K
15:28 | 6:23/mi
30K· 18.64 mi
1:54:52
Rank: #1339 (+57)
25K → 30K
19:37 | 6:19/mi
20M
2:03:37
Rank: #1319 (+20)
30K → 20M
8:45 | 6:26/mi
21M
2:10:22
Rank: #1301 (+18)
20M → 21M
6:45 | 6:45/mi
35K· 21.75 mi
2:15:10
Rank: #1309 (-8)
21M → 35K
4:48 | 6:25/mi
23M
2:23:21
Rank: #1285 (+24)
35K → 23M
8:11 | 6:32/mi
24M
2:29:49
Rank: #1293 (-8)
23M → 24M
6:28 | 6:28/mi
40K· 24.85 mi
2:35:27
Rank: #1305 (-12)
24M → 40K
5:38 | 6:35/mi
25.2M
2:37:48
Rank: #1288 (+17)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:43:50
Rank: #1233 (+55)
25.2M → Finish
6:02 | 5:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:47
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:24:03
Pace6:25 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1519:046:0819:04
6:08
-
10K
6.21 mi10:38:5737:466:0518:42
6:01
-0:07
15K
9.32 mi10:57:4656:356:0418:49
6:03
+0:02
20K
12.43 mi11:16:491:15:386:0519:03
6:08
+0:05
Half
13.11 mi11:20:581:19:476:054:09
6:05
-0:03
25K
15.53 mi11:36:261:35:156:0815:28
6:23
+0:18
30K
18.64 mi11:56:031:54:526:1019:37
6:19
-0:04
20M
20.00 mi12:04:482:03:376:118:45
6:26
+0:07
21M
21.00 mi12:11:332:10:226:126:45
6:45
+0:19
35K
21.75 mi12:16:212:15:106:134:48
6:25
-0:20
23M
23.00 mi12:24:322:23:216:148:11
6:32
+0:07
24M
24.00 mi12:31:002:29:496:156:28
6:28
-0:04
40K
24.85 mi12:36:382:35:276:155:38
6:35
+0:07
25.2M
25.20 mi12:38:592:37:486:162:21
6:49
+0:14
Finish
26.22 mi12:45:012:43:506:156:02
5:55
-0:54

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

5:55 /mi

Average Pace

6:15 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:55

86% of race

Time at Steady Pace

22:55

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:15 /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 mi10:20:1519:046:0819:04
6:08
#1549
10K
6.21 mi10:38:5737:466:0518:42
6:01
#1339
15K
9.32 mi10:57:4656:356:0418:49
6:03
#1273
20K
12.43 mi11:16:491:15:386:0519:03
6:08
#1267
Half
13.11 mi11:20:581:19:476:054:09
6:05
#1272
25K
15.53 mi11:36:261:35:156:0815:28
6:23
#1396
30K
18.64 mi11:56:031:54:526:1019:37
6:19
#1339
20M
20.00 mi12:04:482:03:376:118:45
6:26
#1319
21M
21.00 mi12:11:332:10:226:126:45
6:45
#1301
35K
21.75 mi12:16:212:15:106:134:48
6:25
#1309
23M
23.00 mi12:24:322:23:216:148:11
6:32
#1285
24M
24.00 mi12:31:002:29:496:156:28
6:28
#1293
40K
24.85 mi12:36:382:35:276:155:38
6:35
#1305
25.2M
25.20 mi12:38:592:37:486:162:21
6:49
#1288
Finish
26.22 mi12:45:012:43:506:156:02
5:55
#1233
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1549147414741215(Top 4%)1153(Top 7%)1153(Top 20%)
10K6.21 mi3.10 mi1339+2101272+2021272+2021156(Top 4%)1094(Top 7%)1094(Top 19%)
15K9.32 mi3.11 mi1273+661209+631209+631215(Top 4%)1153(Top 7%)1153(Top 20%)
20K12.43 mi3.11 mi1267+61199+101199+101280(Top 5%)1214(Top 8%)1214(Top 22%)
Half13.11 mi0.68 mi1272-51204-51204-51457(Top 5%)1385(Top 9%)1385(Top 25%)
25K15.53 mi2.42 mi1396-1241324-1201324-1202235(Top 8%)2125(Top 13%)2125(Top 38%)
30K18.64 mi3.11 mi1339+571264+601264+601243(Top 4%)1173(Top 7%)1173(Top 21%)
20M20.00 mi1.36 mi1319+201244+201244+201366(Top 5%)1291(Top 8%)1291(Top 23%)
21M21.00 mi1.00 mi1301+181227+171227+171350(Top 5%)1276(Top 8%)1276(Top 23%)
35K21.75 mi0.75 mi1309-81235-81235-82050(Top 7%)1917(Top 12%)1917(Top 34%)
23M23.00 mi1.25 mi1285+241210+251210+251569(Top 6%)1467(Top 9%)1467(Top 26%)
24M24.00 mi1.00 mi1293-81217-71217-71899(Top 7%)1761(Top 11%)1761(Top 31%)
40K24.85 mi0.85 mi1305-121229-121229-121905(Top 7%)1755(Top 11%)1755(Top 31%)
25.2M25.20 mi0.35 mi1288+171212+171212+171009(Top 4%)927(Top 6%)927(Top 16%)
Finish26.22 mi1.02 mi1233+551158+541158+54737(Top 3%)693(Top 4%)693(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1215

Males

1153

M18-39

1153

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1156

Males

1094

M18-39

1094

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1215

Males

1153

M18-39

1153

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1280

Males

1214

M18-39

1214

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1457

Males

1385

M18-39

1385

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2235

Males

2125

M18-39

2125

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1243

Males

1173

M18-39

1173

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1366

Males

1291

M18-39

1291

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1350

Males

1276

M18-39

1276

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2050

Males

1917

M18-39

1917

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1569

Males

1467

M18-39

1467

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1899

Males

1761

M18-39

1761

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1905

Males

1755

M18-39

1755

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1009

Males

927

M18-39

927

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

737

Males

693

M18-39

693

Passing Analysis

Category:
Athletes Passed
695
Passed By
379
Net Change
+316
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1549
5K → 10K2199+210#1549#1339
10K → 15K7913+66#1339#1273
15K → 20K4842+6#1273#1267
20K → Half712-5#1267#1272
Half → 25K15139-124#1272#1396
25K → 30K7619+57#1396#1339
30K → 20M3919+20#1339#1319
20M → 21M3618+18#1319#1301
21M → 35K1927-8#1301#1309
35K → 23M4319+24#1309#1285
23M → 24M2432-8#1285#1293
24M → 40K1426-12#1293#1305
40K → 25.2M181+17#1305#1288
25.2M → Finish583+55#1288#1233
TOTALS695379+316
📊

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