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BOSTON MARATHON 2025

Ryan Duncan

Bib: 1610•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:23
Rank: #2068
Start → 5K
19:23 | 6:14/mi
10K· 6.21 mi
38:25
Rank: #1781 (+287)
5K → 10K
19:02 | 6:08/mi
15K· 9.32 mi
57:20
Rank: #1611 (+170)
10K → 15K
18:55 | 6:05/mi
20K· 12.43 mi
1:16:11
Rank: #1444 (+167)
15K → 20K
18:51 | 6:04/mi
Half· 13.11 mi
1:20:14
Rank: #1415 (+29)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:34:54
Rank: #1309 (+106)
Half → 25K
14:40 | 6:03/mi
30K· 18.64 mi
1:54:08
Rank: #1205 (+104)
25K → 30K
19:14 | 6:11/mi
20M
2:02:30
Rank: #1129 (+76)
30K → 20M
8:22 | 6:09/mi
21M
2:09:03
Rank: #1083 (+46)
20M → 21M
6:33 | 6:33/mi
35K· 21.75 mi
2:13:35
Rank: #1055 (+28)
21M → 35K
4:32 | 6:04/mi
23M
2:21:28
Rank: #1015 (+40)
35K → 23M
7:53 | 6:18/mi
24M
2:27:41
Rank: #997 (+18)
23M → 24M
6:13 | 6:13/mi
40K· 24.85 mi
2:33:05
Rank: #984 (+13)
24M → 40K
5:24 | 6:19/mi
25.2M
2:35:21
Rank: #969 (+15)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:41:34
Rank: #962 (+7)
25.2M → Finish
6:13 | 6:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:14
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:21:20
Pace6:12 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0419:236:1419:23
6:14
-
10K
6.21 mi10:39:0638:256:1119:02
6:08
-0:06
15K
9.32 mi10:58:0157:206:0918:55
6:05
-0:03
20K
12.43 mi11:16:521:16:116:0818:51
6:04
-0:01
Half
13.11 mi11:20:551:20:146:074:03
5:56
-0:08
25K
15.53 mi11:35:351:34:546:0714:40
6:03
+0:07
30K
18.64 mi11:54:491:54:086:0719:14
6:11
+0:08
20M
20.00 mi12:03:112:02:306:078:22
6:09
-0:02
21M
21.00 mi12:09:442:09:036:096:33
6:33
+0:24
35K
21.75 mi12:14:162:13:356:094:32
6:04
-0:29
23M
23.00 mi12:22:092:21:286:097:53
6:18
+0:14
24M
24.00 mi12:28:222:27:416:096:13
6:13
-0:05
40K
24.85 mi12:33:462:33:056:105:24
6:19
+0:06
25.2M
25.20 mi12:36:022:35:216:102:16
6:34
+0:15
Finish
26.22 mi12:42:152:41:346:106:13
6:06
-0:28

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

5:56 /mi

Average Pace

6:10 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:45

95% of race

Time at Steady Pace

8:49

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:10 /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 mi10:20:0419:236:1419:23
6:14
#2068
10K
6.21 mi10:39:0638:256:1119:02
6:08
#1781
15K
9.32 mi10:58:0157:206:0918:55
6:05
#1611
20K
12.43 mi11:16:521:16:116:0818:51
6:04
#1444
Half
13.11 mi11:20:551:20:146:074:03
5:56
#1415
25K
15.53 mi11:35:351:34:546:0714:40
6:03
#1309
30K
18.64 mi11:54:491:54:086:0719:14
6:11
#1205
20M
20.00 mi12:03:112:02:306:078:22
6:09
#1129
21M
21.00 mi12:09:442:09:036:096:33
6:33
#1083
35K
21.75 mi12:14:162:13:356:094:32
6:04
#1055
23M
23.00 mi12:22:092:21:286:097:53
6:18
#1015
24M
24.00 mi12:28:222:27:416:096:13
6:13
#997
40K
24.85 mi12:33:462:33:056:105:24
6:19
#984
25.2M
25.20 mi12:36:022:35:216:102:16
6:34
#969
Finish
26.22 mi12:42:152:41:346:106:13
6:06
#962
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2068197019701323(Top 5%)1256(Top 8%)1256(Top 22%)
10K6.21 mi3.10 mi1781+2871693+2771693+2771562(Top 5%)1485(Top 9%)1485(Top 26%)
15K9.32 mi3.11 mi1611+1701533+1601533+1601323(Top 5%)1256(Top 8%)1256(Top 22%)
20K12.43 mi3.11 mi1444+1671370+1631370+1631061(Top 4%)1000(Top 6%)1000(Top 18%)
Half13.11 mi0.68 mi1415+291343+271343+27939(Top 3%)889(Top 6%)889(Top 16%)
25K15.53 mi2.42 mi1309+1061239+1041239+104925(Top 3%)871(Top 5%)871(Top 15%)
30K18.64 mi3.11 mi1205+1041137+1021137+102889(Top 3%)833(Top 5%)833(Top 15%)
20M20.00 mi1.36 mi1129+761065+721065+72636(Top 2%)596(Top 4%)596(Top 11%)
21M21.00 mi1.00 mi1083+461020+451020+45787(Top 3%)744(Top 5%)744(Top 13%)
35K21.75 mi0.75 mi1055+28993+27993+27850(Top 3%)795(Top 5%)795(Top 14%)
23M23.00 mi1.25 mi1015+40956+37956+37866(Top 3%)817(Top 5%)817(Top 14%)
24M24.00 mi1.00 mi997+18939+17939+171061(Top 4%)997(Top 6%)997(Top 18%)
40K24.85 mi0.85 mi984+13926+13926+13998(Top 4%)935(Top 6%)935(Top 17%)
25.2M25.20 mi0.35 mi969+15912+14912+14565(Top 2%)525(Top 3%)525(Top 9%)
Finish26.22 mi1.02 mi962+7904+8904+81178(Top 4%)1101(Top 7%)1101(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1323

Males

1256

M18-39

1256

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1562

Males

1485

M18-39

1485

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1323

Males

1256

M18-39

1256

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1061

Males

1000

M18-39

1000

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

939

Males

889

M18-39

889

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

925

Males

871

M18-39

871

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

889

Males

833

M18-39

833

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

636

Males

596

M18-39

596

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

787

Males

744

M18-39

744

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

850

Males

795

M18-39

795

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

866

Males

817

M18-39

817

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1061

Males

997

M18-39

997

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

998

Males

935

M18-39

935

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

565

Males

525

M18-39

525

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1178

Males

1101

M18-39

1101

Passing Analysis

Category:
Athletes Passed
1191
Passed By
85
Net Change
+1106
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2068
5K → 10K30720+287#2068#1781
10K → 15K1777+170#1781#1611
15K → 20K1692+167#1611#1444
20K → Half290+29#1444#1415
Half → 25K1082+106#1415#1309
25K → 30K1084+104#1309#1205
30K → 20M771+76#1205#1129
20M → 21M537+46#1129#1083
21M → 35K313+28#1083#1055
35K → 23M5010+40#1055#1015
23M → 24M2810+18#1015#997
24M → 40K207+13#997#984
40K → 25.2M161+15#984#969
25.2M → Finish1811+7#969#962
TOTALS119185+1106
📊

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