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BOSTON MARATHON 2025

Alex Campbell

Bib: 3689•M

SC

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
20:39
Rank: #4974
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:03
Rank: #4550 (+424)
5K → 10K
20:24 | 6:34/mi
15K· 9.32 mi
1:01:19
Rank: #4240 (+310)
10K → 15K
20:16 | 6:31/mi
20K· 12.43 mi
1:21:51
Rank: #4049 (+191)
15K → 20K
20:32 | 6:37/mi
Half· 13.11 mi
1:26:17
Rank: #4028 (+21)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:42:16
Rank: #3890 (+138)
Half → 25K
15:59 | 6:36/mi
30K· 18.64 mi
2:03:10
Rank: #3690 (+200)
25K → 30K
20:54 | 6:44/mi
20M
2:12:17
Rank: #3567 (+123)
30K → 20M
9:07 | 6:43/mi
21M
2:19:18
Rank: #3451 (+116)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:24:08
Rank: #3368 (+83)
21M → 35K
4:50 | 6:28/mi
23M
2:32:33
Rank: #3237 (+131)
35K → 23M
8:25 | 6:43/mi
24M
2:39:06
Rank: #3157 (+80)
23M → 24M
6:33 | 6:33/mi
40K· 24.85 mi
2:44:47
Rank: #3066 (+91)
24M → 40K
5:41 | 6:39/mi
25.2M
2:47:17
Rank: #3032 (+34)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:53:46
Rank: #2962 (+70)
25.2M → Finish
6:29 | 6:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:17
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:27:29
Pace6:40 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1020:396:3920:39
6:39
-
10K
6.21 mi10:43:3441:036:3620:24
6:34
-0:05
15K
9.32 mi11:03:501:01:196:3520:16
6:31
-0:03
20K
12.43 mi11:24:221:21:516:3520:32
6:37
+0:06
Half
13.11 mi11:28:481:26:176:354:26
6:30
-0:07
25K
15.53 mi11:44:471:42:166:3515:59
6:36
+0:06
30K
18.64 mi12:05:412:03:106:3620:54
6:44
+0:08
20M
20.00 mi12:14:482:12:176:379:07
6:43
-0:01
21M
21.00 mi12:21:492:19:186:387:01
7:01
+0:18
35K
21.75 mi12:26:392:24:086:384:50
6:28
-0:33
23M
23.00 mi12:35:042:32:336:388:25
6:43
+0:15
24M
24.00 mi12:41:372:39:066:386:33
6:33
-0:10
40K
24.85 mi12:47:182:44:476:385:41
6:39
+0:06
25.2M
25.20 mi12:49:482:47:176:382:30
7:15
+0:36
Finish
26.22 mi12:56:172:53:466:386:29
6:22
-0:53

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

6:22 /mi

Average Pace

6:38 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:15

95% of race

Time at Steady Pace

9:31

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:38 /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 mi10:23:1020:396:3920:39
6:39
#4974
10K
6.21 mi10:43:3441:036:3620:24
6:34
#4550
15K
9.32 mi11:03:501:01:196:3520:16
6:31
#4240
20K
12.43 mi11:24:221:21:516:3520:32
6:37
#4049
Half
13.11 mi11:28:481:26:176:354:26
6:30
#4028
25K
15.53 mi11:44:471:42:166:3515:59
6:36
#3890
30K
18.64 mi12:05:412:03:106:3620:54
6:44
#3690
20M
20.00 mi12:14:482:12:176:379:07
6:43
#3567
21M
21.00 mi12:21:492:19:186:387:01
7:01
#3451
35K
21.75 mi12:26:392:24:086:384:50
6:28
#3368
23M
23.00 mi12:35:042:32:336:388:25
6:43
#3237
24M
24.00 mi12:41:372:39:066:386:33
6:33
#3157
40K
24.85 mi12:47:182:44:476:385:41
6:39
#3066
25.2M
25.20 mi12:49:482:47:176:382:30
7:15
#3032
Finish
26.22 mi12:56:172:53:466:386:29
6:22
#2962
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4974464846483696(Top 13%)3489(Top 22%)3489(Top 62%)
10K6.21 mi3.10 mi4550+4244271+3774271+3774176(Top 15%)3926(Top 24%)3926(Top 70%)
15K9.32 mi3.11 mi4240+3103988+2833988+2833696(Top 13%)3489(Top 22%)3489(Top 62%)
20K12.43 mi3.11 mi4049+1913812+1763812+1763739(Top 13%)3529(Top 22%)3529(Top 63%)
Half13.11 mi0.68 mi4028+213791+213791+213602(Top 13%)3402(Top 21%)3402(Top 60%)
25K15.53 mi2.42 mi3890+1383666+1253666+1253399(Top 12%)3208(Top 20%)3208(Top 57%)
30K18.64 mi3.11 mi3690+2003483+1833483+1833005(Top 11%)2825(Top 18%)2825(Top 50%)
20M20.00 mi1.36 mi3567+1233366+1173366+1172495(Top 9%)2349(Top 15%)2349(Top 42%)
21M21.00 mi1.00 mi3451+1163261+1053261+1052313(Top 8%)2159(Top 13%)2159(Top 38%)
35K21.75 mi0.75 mi3368+833180+813180+812267(Top 8%)2119(Top 13%)2119(Top 38%)
23M23.00 mi1.25 mi3237+1313055+1253055+1252339(Top 8%)2177(Top 14%)2177(Top 39%)
24M24.00 mi1.00 mi3157+802981+742981+742248(Top 8%)2080(Top 13%)2080(Top 37%)
40K24.85 mi0.85 mi3066+912893+882893+882145(Top 8%)1971(Top 12%)1971(Top 35%)
25.2M25.20 mi0.35 mi3032+342860+332860+332314(Top 8%)2067(Top 13%)2067(Top 37%)
Finish26.22 mi1.02 mi2962+702795+652795+652137(Top 8%)1955(Top 12%)1955(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3696

Males

3489

M18-39

3489

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4176

Males

3926

M18-39

3926

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3696

Males

3489

M18-39

3489

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3739

Males

3529

M18-39

3529

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3602

Males

3402

M18-39

3402

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3399

Males

3208

M18-39

3208

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3005

Males

2825

M18-39

2825

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2495

Males

2349

M18-39

2349

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2313

Males

2159

M18-39

2159

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2267

Males

2119

M18-39

2119

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2339

Males

2177

M18-39

2177

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2248

Males

2080

M18-39

2080

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2145

Males

1971

M18-39

1971

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2314

Males

2067

M18-39

2067

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2137

Males

1955

M18-39

1955

Passing Analysis

Category:
Athletes Passed
2186
Passed By
174
Net Change
+2012
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4974
5K → 10K45632+424#4974#4550
10K → 15K32515+310#4550#4240
15K → 20K21625+191#4240#4049
20K → Half298+21#4049#4028
Half → 25K15214+138#4028#3890
25K → 30K22626+200#3890#3690
30K → 20M1307+123#3690#3567
20M → 21M1248+116#3567#3451
21M → 35K863+83#3451#3368
35K → 23M14312+131#3368#3237
23M → 24M866+80#3237#3157
24M → 40K987+91#3157#3066
40K → 25.2M373+34#3066#3032
25.2M → Finish788+70#3032#2962
TOTALS2186174+2012
📊

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