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BOSTON MARATHON 2025

Matt Arnason

Bib: 2361•M

NY

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
19:08
Rank: #1646
Start → 5K
6:10/mi
19:08 split
10K· 6.21 mi
38:11
Rank: #1607 (+39)
5K → 10K
6:08/mi
19:03 split
15K· 9.32 mi
57:18
Rank: #1597 (+10)
10K → 15K
6:09/mi
19:07 split
20K· 12.43 mi
1:16:27
Rank: #1532 (+65)
15K → 20K
6:10/mi
19:09 split
Half· 13.11 mi
1:20:38
Rank: #1539 (-7)
20K → Half
6:08/mi
4:11 split
25K· 15.53 mi
1:35:43
Rank: #1516 (+23)
Half → 25K
6:13/mi
15:05 split
30K· 18.64 mi
1:55:02
Rank: #1364 (+152)
25K → 30K
6:13/mi
19:19 split
20M
2:03:38
Rank: #1322 (+42)
30K → 20M
6:20/mi
8:36 split
21M
2:10:13
Rank: #1270 (+52)
20M → 21M
6:35/mi
6:35 split
35K· 21.75 mi
2:14:54
Rank: #1262 (+8)
21M → 35K
6:16/mi
4:41 split
23M
2:23:01
Rank: #1234 (+28)
35K → 23M
6:29/mi
8:07 split
24M
2:29:20
Rank: #1218 (+16)
23M → 24M
6:19/mi
6:19 split
40K· 24.85 mi
2:34:52
Rank: #1208 (+10)
24M → 40K
6:28/mi
5:32 split
25.2M
2:37:13
Rank: #1199 (+9)
40K → 25.2M
6:49/mi
2:21 split
Finish· 26.22 mi
2:43:26
Rank: #1173 (+26)
25.2M → Finish
6:06/mi
6:13 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:38
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:22:48
Pace6:19 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0219:086:1019:08
6:10
-
10K
6.21 mi10:39:0538:116:0919:03
6:08
-0:02
15K
9.32 mi10:58:1257:186:0919:07
6:09
+0:01
20K
12.43 mi11:17:211:16:276:0919:09
6:10
+0:01
Half
13.11 mi11:21:321:20:386:094:11
6:08
-0:02
25K
15.53 mi11:36:371:35:436:1015:05
6:13
+0:05
30K
18.64 mi11:55:561:55:026:1019:19
6:13
0:00
20M
20.00 mi12:04:322:03:386:118:36
6:20
+0:07
21M
21.00 mi12:11:072:10:136:126:35
6:35
+0:15
35K
21.75 mi12:15:482:14:546:124:41
6:16
-0:19
23M
23.00 mi12:23:552:23:016:138:07
6:29
+0:13
24M
24.00 mi12:30:142:29:206:136:19
6:19
-0:10
40K
24.85 mi12:35:462:34:526:145:32
6:28
+0:09
25.2M
25.20 mi12:38:072:37:136:142:21
6:49
+0:21
Finish
26.22 mi12:44:202:43:266:146:13
6:06
-0:43

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

6:06 /mi

Average Pace

6:14 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:05

99% of race

Time at Steady Pace

2:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:14 /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 mi10:20:0219:086:1019:08
6:10
#1646
10K
6.21 mi10:39:0538:116:0919:03
6:08
#1607
15K
9.32 mi10:58:1257:186:0919:07
6:09
#1597
20K
12.43 mi11:17:211:16:276:0919:09
6:10
#1532
Half
13.11 mi11:21:321:20:386:094:11
6:08
#1539
25K
15.53 mi11:36:371:35:436:1015:05
6:13
#1516
30K
18.64 mi11:55:561:55:026:1019:19
6:13
#1364
20M
20.00 mi12:04:322:03:386:118:36
6:20
#1322
21M
21.00 mi12:11:072:10:136:126:35
6:35
#1270
35K
21.75 mi12:15:482:14:546:124:41
6:16
#1262
23M
23.00 mi12:23:552:23:016:138:07
6:29
#1234
24M
24.00 mi12:30:142:29:206:136:19
6:19
#1218
40K
24.85 mi12:35:462:34:526:145:32
6:28
#1208
25.2M
25.20 mi12:38:072:37:136:142:21
6:49
#1199
Finish
26.22 mi12:44:202:43:266:146:13
6:06
#1173
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1646156415641610(Top 6%)1527(Top 9%)1527(Top 27%)
10K6.21 mi3.10 mi1607+391528+361528+361585(Top 6%)1508(Top 9%)1508(Top 27%)
15K9.32 mi3.11 mi1597+101519+91519+91610(Top 6%)1527(Top 9%)1527(Top 27%)
20K12.43 mi3.11 mi1532+651454+651454+651423(Top 5%)1349(Top 8%)1349(Top 24%)
Half13.11 mi0.68 mi1539-71462-81462-81628(Top 6%)1547(Top 10%)1547(Top 27%)
25K15.53 mi2.42 mi1516+231437+251437+251530(Top 5%)1452(Top 9%)1452(Top 26%)
30K18.64 mi3.11 mi1364+1521289+1481289+148972(Top 3%)914(Top 6%)914(Top 16%)
20M20.00 mi1.36 mi1322+421247+421247+421030(Top 4%)972(Top 6%)972(Top 17%)
21M21.00 mi1.00 mi1270+521198+491198+49871(Top 3%)823(Top 5%)823(Top 15%)
35K21.75 mi0.75 mi1262+81189+91189+91434(Top 5%)1358(Top 8%)1358(Top 24%)
23M23.00 mi1.25 mi1234+281161+281161+281396(Top 5%)1313(Top 8%)1313(Top 23%)
24M24.00 mi1.00 mi1218+161146+151146+151345(Top 5%)1257(Top 8%)1257(Top 22%)
40K24.85 mi0.85 mi1208+101137+91137+91496(Top 5%)1383(Top 9%)1383(Top 25%)
25.2M25.20 mi0.35 mi1199+91127+101127+101007(Top 4%)925(Top 6%)925(Top 16%)
Finish26.22 mi1.02 mi1173+261103+241103+241182(Top 4%)1105(Top 7%)1105(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21story building
+97ft-345ft

Overall

1610

Males

1527

M18-39

1527

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1585

Males

1508

M18-39

1508

10K→15K

6.2 - 9.3 mi

Top 6%
×3story building
+67ft-78ft

Overall

1610

Males

1527

M18-39

1527

15K→20K

9.3 - 12.4 mi

Top 5%
×5story building
+106ft-86ft

Overall

1423

Males

1349

M18-39

1349

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1628

Males

1547

M18-39

1547

Half→25K

13.1 - 15.5 mi

Top 5%
×4story building
+66ft-88ft

Overall

1530

Males

1452

M18-39

1452

25K→30K

15.5 - 18.6 mi

Top 3%
×9story building
+181ft-148ft

Overall

972

Males

914

M18-39

914

30K→20M

18.6 - 20.0 mi

Top 4%
×5story building
+64ft-50ft

Overall

1030

Males

972

M18-39

972

20M→21M

20.0 - 21.0 mi

Top 3%
×8story building
+106ft-24ft

Overall

871

Males

823

M18-39

823

21M→35K

21.0 - 21.8 mi

Top 5%
×7story building
+17ft-86ft

Overall

1434

Males

1358

M18-39

1358

35K→23M

21.8 - 23.0 mi

Top 5%
×5story building
+23ft-63ft

Overall

1396

Males

1313

M18-39

1313

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1345

Males

1257

M18-39

1257

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1496

Males

1383

M18-39

1383

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1007

Males

925

M18-39

925

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2story building
+22ft-21ft

Overall

1182

Males

1105

M18-39

1105

Passing Analysis

Category:
Athletes Passed
737
Passed By
264
Net Change
+473
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1646
5K → 10K10566+39#1646#1607
10K → 15K5848+10#1607#1597
15K → 20K8217+65#1597#1532
20K → Half1118-7#1532#1539
Half → 25K4825+23#1539#1516
25K → 30K1542+152#1516#1364
30K → 20M5210+42#1364#1322
20M → 21M564+52#1322#1270
21M → 35K2113+8#1270#1262
35K → 23M5123+28#1262#1234
23M → 24M248+16#1234#1218
24M → 40K3121+10#1218#1208
40K → 25.2M123+9#1208#1199
25.2M → Finish326+26#1199#1173
TOTALS737264+473
📊

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