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BOSTON MARATHON 2025

Grant Mattox

Bib: 1686•M

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 9%
Division (M18-39)
#0 / 5642
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:18
Rank: #1923
Start → 5K
6:13/mi
19:18 split
10K· 6.21 mi
38:49
Rank: #2112 (-189)
5K → 10K
6:17/mi
19:31 split
15K· 9.32 mi
58:17
Rank: #2113 (-1)
10K → 15K
6:16/mi
19:28 split
20K· 12.43 mi
1:17:41
Rank: #2001 (+112)
15K → 20K
6:15/mi
19:24 split
Half· 13.11 mi
1:21:54
Rank: #1990 (+11)
20K → Half
6:11/mi
4:13 split
25K· 15.53 mi
1:37:01
Rank: #1910 (+80)
Half → 25K
6:14/mi
15:07 split
30K· 18.64 mi
1:57:00
Rank: #1833 (+77)
25K → 30K
6:26/mi
19:59 split
20M
2:05:48
Rank: #1786 (+47)
30K → 20M
6:29/mi
8:48 split
21M
2:12:36
Rank: #1733 (+53)
20M → 21M
6:48/mi
6:48 split
35K· 21.75 mi
2:17:19
Rank: #1711 (+22)
21M → 35K
6:18/mi
4:43 split
23M
2:25:24
Rank: #1638 (+73)
35K → 23M
6:27/mi
8:05 split
24M
2:31:39
Rank: #1578 (+60)
23M → 24M
6:15/mi
6:15 split
40K· 24.85 mi
2:37:10
Rank: #1551 (+27)
24M → 40K
6:27/mi
5:31 split
25.2M
2:39:35
Rank: #1543 (+8)
40K → 25.2M
7:00/mi
2:25 split
Finish· 26.22 mi
2:45:50
Rank: #1510 (+33)
25.2M → Finish
6:08/mi
6:15 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:54
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:23:56
Pace6:24 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5419:186:1319:18
6:13
-
10K
6.21 mi10:39:2538:496:1519:31
6:17
+0:04
15K
9.32 mi10:58:5358:176:1519:28
6:16
-0:01
20K
12.43 mi11:18:171:17:416:1519:24
6:15
-0:01
Half
13.11 mi11:22:301:21:546:154:13
6:11
-0:04
25K
15.53 mi11:37:371:37:016:1515:07
6:14
+0:03
30K
18.64 mi11:57:361:57:006:1719:59
6:26
+0:12
20M
20.00 mi12:06:242:05:486:178:48
6:29
+0:03
21M
21.00 mi12:13:122:12:366:196:48
6:48
+0:19
35K
21.75 mi12:17:552:17:196:194:43
6:18
-0:30
23M
23.00 mi12:26:002:25:246:198:05
6:27
+0:09
24M
24.00 mi12:32:152:31:396:196:15
6:15
-0:12
40K
24.85 mi12:37:462:37:106:195:31
6:27
+0:12
25.2M
25.20 mi12:40:112:39:356:202:25
7:00
+0:33
Finish
26.22 mi12:46:262:45:506:206:15
6:08
-0:52

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

6:08 /mi

Average Pace

6:20 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:37

94% of race

Time at Steady Pace

9:13

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:19 /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 mi10:19:5419:186:1319:18
6:13
#1923
10K
6.21 mi10:39:2538:496:1519:31
6:17
#2112
15K
9.32 mi10:58:5358:176:1519:28
6:16
#2113
20K
12.43 mi11:18:171:17:416:1519:24
6:15
#2001
Half
13.11 mi11:22:301:21:546:154:13
6:11
#1990
25K
15.53 mi11:37:371:37:016:1515:07
6:14
#1910
30K
18.64 mi11:57:361:57:006:1719:59
6:26
#1833
20M
20.00 mi12:06:242:05:486:178:48
6:29
#1786
21M
21.00 mi12:13:122:12:366:196:48
6:48
#1733
35K
21.75 mi12:17:552:17:196:194:43
6:18
#1711
23M
23.00 mi12:26:002:25:246:198:05
6:27
#1638
24M
24.00 mi12:32:152:31:396:196:15
6:15
#1578
40K
24.85 mi12:37:462:37:106:195:31
6:27
#1551
25.2M
25.20 mi12:40:112:39:356:202:25
7:00
#1543
Finish
26.22 mi12:46:262:45:506:206:15
6:08
#1510
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1923182918292171(Top 8%)2069(Top 13%)2069(Top 37%)
10K6.21 mi3.10 mi2112-1892014-1852014-1852292(Top 8%)2193(Top 14%)2193(Top 39%)
15K9.32 mi3.11 mi2113-12016-22016-22171(Top 8%)2069(Top 13%)2069(Top 37%)
20K12.43 mi3.11 mi2001+1121911+1051911+1051767(Top 6%)1679(Top 10%)1679(Top 30%)
Half13.11 mi0.68 mi1990+111900+111900+111852(Top 7%)1765(Top 11%)1765(Top 31%)
25K15.53 mi2.42 mi1910+801820+801820+801600(Top 6%)1520(Top 9%)1520(Top 27%)
30K18.64 mi3.11 mi1833+771744+761744+761679(Top 6%)1592(Top 10%)1592(Top 28%)
20M20.00 mi1.36 mi1786+471698+461698+461531(Top 5%)1446(Top 9%)1446(Top 26%)
21M21.00 mi1.00 mi1733+531645+531645+531523(Top 5%)1434(Top 9%)1434(Top 25%)
35K21.75 mi0.75 mi1711+221622+231622+231613(Top 6%)1513(Top 9%)1513(Top 27%)
23M23.00 mi1.25 mi1638+731550+721550+721320(Top 5%)1241(Top 8%)1241(Top 22%)
24M24.00 mi1.00 mi1578+601492+581492+581162(Top 4%)1089(Top 7%)1089(Top 19%)
40K24.85 mi0.85 mi1551+271466+261466+261433(Top 5%)1327(Top 8%)1327(Top 24%)
25.2M25.20 mi0.35 mi1543+81459+71459+71478(Top 5%)1349(Top 8%)1349(Top 24%)
Finish26.22 mi1.02 mi1510+331427+321427+321302(Top 5%)1215(Top 8%)1215(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21story building
+97ft-345ft

Overall

2171

Males

2069

M18-39

2069

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2292

Males

2193

M18-39

2193

10K→15K

6.2 - 9.3 mi

Top 8%
×3story building
+67ft-78ft

Overall

2171

Males

2069

M18-39

2069

15K→20K

9.3 - 12.4 mi

Top 6%
×5story building
+106ft-86ft

Overall

1767

Males

1679

M18-39

1679

20K→Half

12.4 - 13.1 mi

Top 7%
×2story building
+19ft-37ft

Overall

1852

Males

1765

M18-39

1765

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1600

Males

1520

M18-39

1520

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1679

Males

1592

M18-39

1592

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1531

Males

1446

M18-39

1446

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1523

Males

1434

M18-39

1434

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1613

Males

1513

M18-39

1513

35K→23M

21.8 - 23.0 mi

Top 5%
×5story building
+23ft-63ft

Overall

1320

Males

1241

M18-39

1241

23M→24M

23.0 - 24.0 mi

Top 4%
×6story building
+12ft-82ft

Overall

1162

Males

1089

M18-39

1089

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1433

Males

1327

M18-39

1327

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1478

Males

1349

M18-39

1349

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1302

Males

1215

M18-39

1215

Passing Analysis

Category:
Athletes Passed
879
Passed By
466
Net Change
+413
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1923
5K → 10K49238-189#1923#2112
10K → 15K7374-1#2112#2113
15K → 20K13018+112#2113#2001
20K → Half143+11#2001#1990
Half → 25K899+80#1990#1910
25K → 30K12245+77#1910#1833
30K → 20M5811+47#1833#1786
20M → 21M6411+53#1786#1733
21M → 35K319+22#1733#1711
35K → 23M807+73#1711#1638
23M → 24M699+60#1638#1578
24M → 40K4114+27#1578#1551
40K → 25.2M168+8#1551#1543
25.2M → Finish4310+33#1543#1510
TOTALS879466+413
📊

Passing Visuals

Category:
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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