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BOSTON MARATHON 2025

Grayson Childress

Bib: 1320•M

MS

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 2%
Gender (Male)
#0 / 16105
Top 3%
Division (M18-39)
#0 / 5642
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:46
Rank: #1191
Start → 5K
18:46 | 6:02/mi
10K· 6.21 mi
37:16
Rank: #1053 (+138)
5K → 10K
18:30 | 5:57/mi
15K· 9.32 mi
55:35
Rank: #951 (+102)
10K → 15K
18:19 | 5:54/mi
20K· 12.43 mi
1:14:03
Rank: #886 (+65)
15K → 20K
18:28 | 5:57/mi
Half· 13.11 mi
1:18:04
Rank: #878 (+8)
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:32:24
Rank: #817 (+61)
Half → 25K
14:20 | 5:55/mi
30K· 18.64 mi
1:50:59
Rank: #724 (+93)
25K → 30K
18:35 | 5:59/mi
20M
1:59:00
Rank: #657 (+67)
30K → 20M
8:01 | 5:54/mi
21M
2:05:14
Rank: #614 (+43)
20M → 21M
6:14 | 6:14/mi
35K· 21.75 mi
2:09:31
Rank: #587 (+27)
21M → 35K
4:17 | 5:44/mi
23M
2:16:48
Rank: #556 (+31)
35K → 23M
7:17 | 5:49/mi
24M
2:22:32
Rank: #526 (+30)
23M → 24M
5:44 | 5:44/mi
40K· 24.85 mi
2:27:34
Rank: #499 (+27)
24M → 40K
5:02 | 5:53/mi
25.2M
2:29:45
Rank: #488 (+11)
40K → 25.2M
2:11 | 6:20/mi
Finish· 26.22 mi
2:35:22
Rank: #451 (+37)
25.2M → Finish
5:37 | 5:31/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:18:04
Pace5:57 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:17:18
Pace5:54 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3118:466:0218:46
6:02
-
10K
6.21 mi10:38:0137:166:0018:30
5:57
-0:05
15K
9.32 mi10:56:2055:355:5818:19
5:54
-0:03
20K
12.43 mi11:14:481:14:035:5818:28
5:57
+0:03
Half
13.11 mi11:18:491:18:045:574:01
5:53
-0:04
25K
15.53 mi11:33:091:32:245:5714:20
5:55
+0:02
30K
18.64 mi11:51:441:50:595:5718:35
5:59
+0:04
20M
20.00 mi11:59:451:59:005:578:01
5:54
-0:05
21M
21.00 mi12:05:592:05:145:586:14
6:14
+0:20
35K
21.75 mi12:10:162:09:315:574:17
5:44
-0:30
23M
23.00 mi12:17:332:16:485:577:17
5:49
+0:05
24M
24.00 mi12:23:172:22:325:565:44
5:44
-0:05
40K
24.85 mi12:28:192:27:345:565:02
5:53
+0:09
25.2M
25.20 mi12:30:302:29:455:572:11
6:20
+0:27
Finish
26.22 mi12:36:072:35:225:565:37
5:31
-0:49

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

5:31 /mi

Average Pace

5:56 /mi

Slowest Pace

6:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:57

95% of race

Time at Steady Pace

8:25

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:56 /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 mi10:19:3118:466:0218:46
6:02
#1191
10K
6.21 mi10:38:0137:166:0018:30
5:57
#1053
15K
9.32 mi10:56:2055:355:5818:19
5:54
#951
20K
12.43 mi11:14:481:14:035:5818:28
5:57
#886
Half
13.11 mi11:18:491:18:045:574:01
5:53
#878
25K
15.53 mi11:33:091:32:245:5714:20
5:55
#817
30K
18.64 mi11:51:441:50:595:5718:35
5:59
#724
20M
20.00 mi11:59:451:59:005:578:01
5:54
#657
21M
21.00 mi12:05:592:05:145:586:14
6:14
#614
35K
21.75 mi12:10:162:09:315:574:17
5:44
#587
23M
23.00 mi12:17:332:16:485:577:17
5:49
#556
24M
24.00 mi12:23:172:22:325:565:44
5:44
#526
40K
24.85 mi12:28:192:27:345:565:02
5:53
#499
25.2M
25.20 mi12:30:302:29:455:572:11
6:20
#488
Finish
26.22 mi12:36:072:35:225:565:37
5:31
#451
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi119111271127744(Top 3%)696(Top 4%)696(Top 12%)
10K6.21 mi3.10 mi1053+138993+134993+134965(Top 3%)910(Top 6%)910(Top 16%)
15K9.32 mi3.11 mi951+102895+98895+98744(Top 3%)696(Top 4%)696(Top 12%)
20K12.43 mi3.11 mi886+65833+62833+62719(Top 3%)672(Top 4%)672(Top 12%)
Half13.11 mi0.68 mi878+8826+7826+7775(Top 3%)729(Top 5%)729(Top 13%)
25K15.53 mi2.42 mi817+61765+61765+61591(Top 2%)545(Top 3%)545(Top 10%)
30K18.64 mi3.11 mi724+93677+88677+88465(Top 2%)431(Top 3%)431(Top 8%)
20M20.00 mi1.36 mi657+67610+67610+67275(Top 1.0%)255(Top 2%)255(Top 5%)
21M21.00 mi1.00 mi614+43567+43567+43286(Top 1%)267(Top 2%)267(Top 5%)
35K21.75 mi0.75 mi587+27541+26541+26297(Top 1%)276(Top 2%)276(Top 5%)
23M23.00 mi1.25 mi556+31511+30511+30180(Top 0.6%)168(Top 1%)168(Top 3%)
24M24.00 mi1.00 mi526+30483+28483+28217(Top 0.8%)199(Top 1%)199(Top 4%)
40K24.85 mi0.85 mi499+27458+25458+25266(Top 0.9%)245(Top 2%)245(Top 4%)
25.2M25.20 mi0.35 mi488+11450+8450+8251(Top 0.9%)232(Top 1%)232(Top 4%)
Finish26.22 mi1.02 mi451+37415+35415+35156(Top 0.5%)150(Top 0.9%)150(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

744

Males

696

M18-39

696

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

965

Males

910

M18-39

910

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

744

Males

696

M18-39

696

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

719

Males

672

M18-39

672

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

775

Males

729

M18-39

729

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

591

Males

545

M18-39

545

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

465

Males

431

M18-39

431

30K→20M

18.6 - 20.0 mi

Top 1.0%
×5stories
+64ft-50ft

Overall

275

Males

255

M18-39

255

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

286

Males

267

M18-39

267

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

297

Males

276

M18-39

276

35K→23M

21.8 - 23.0 mi

Top 0.6%
×5stories
+23ft-63ft

Overall

180

Males

168

M18-39

168

23M→24M

23.0 - 24.0 mi

Top 0.8%
×6stories
+12ft-82ft

Overall

217

Males

199

M18-39

199

24M→40K

24.0 - 24.9 mi

Top 0.9%
×1story
+6ft-20ft

Overall

266

Males

245

M18-39

245

40K→25.2M

24.9 - 25.2 mi

Top 0.9%
×1story
+13ft-16ft

Overall

251

Males

232

M18-39

232

25.2M→Finish

25.2 - 26.2 mi

Top 0.5%
×2stories
+22ft-21ft

Overall

156

Males

150

M18-39

150

Passing Analysis

Category:
Athletes Passed
775
Passed By
35
Net Change
+740
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1191
5K → 10K15012+138#1191#1053
10K → 15K1053+102#1053#951
15K → 20K705+65#951#886
20K → Half135+8#886#878
Half → 25K643+61#878#817
25K → 30K963+93#817#724
30K → 20M681+67#724#657
20M → 21M430+43#657#614
21M → 35K270+27#614#587
35K → 23M321+31#587#556
23M → 24M300+30#556#526
24M → 40K281+27#526#499
40K → 25.2M121+11#499#488
25.2M → Finish370+37#488#451
TOTALS77535+740
📊

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