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BOSTON MARATHON 2023

Thomas Dilley

Bib: 6721•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 21%
Gender (Male)
#0 / 15176
Top 33%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:52/mi
21:21
↑ 97↓ 3451.5%
10K· 6.21 mi
6:43/mi
42:13
↑ 79↓ 1380.4%
15K· 9.32 mi
6:38/mi
1:02:50
↑ 67↓ 78
20K· 12.43 mi
6:42/mi
1:23:38
↑ 106↓ 860.1%
Half· 13.11 mi
6:40/mi
1:28:11
↑ 19↓ 370.5%
25K· 15.53 mi
6:45/mi
1:44:32
↑ 66↓ 880.2%
30K· 18.64 mi
7:06/mi
2:06:34
↑ 181↓ 1480.2%
20M
7:38/mi
2:16:56
↑ 64↓ 500.2%
21M
8:08/mi
2:25:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:30:36
↑ 17↓ 861.7%
23M
8:08/mi
2:40:47
↑ 23↓ 630.6%
24M
8:03/mi
2:48:50
↓ 821.3%
40K· 24.85 mi
8:02/mi
2:55:42
↓ 200.3%
25.2M
8:39/mi
2:58:41
↑ 13↓ 160.2%
Finish· 26.22 mi
7:13/mi
3:06:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:11
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:37:51
Pace7:28 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3821:216:5221:21
6:52
-
10K
6.21 mi10:45:3042:136:4820:52
6:43
-0:09
15K
9.32 mi11:06:071:02:506:4420:37
6:38
-0:05
20K
12.43 mi11:26:551:23:386:4420:48
6:42
+0:04
Half
13.11 mi11:31:281:28:116:444:33
6:40
-0:02
25K
15.53 mi11:47:491:44:326:4416:21
6:45
+0:05
30K
18.64 mi12:09:512:06:346:4722:02
7:06
+0:21
20M
20.00 mi12:20:132:16:566:5110:22
7:38
+0:32
21M
21.00 mi12:28:212:25:046:548:08
8:08
+0:30
35K
21.75 mi12:33:532:30:366:555:32
7:24
-0:44
23M
23.00 mi12:44:042:40:476:5910:11
8:08
+0:44
24M
24.00 mi12:52:072:48:507:028:03
8:03
-0:05
40K
24.85 mi12:58:592:55:427:046:52
8:02
-0:01
25.2M
25.20 mi13:01:582:58:417:052:59
8:39
+0:37
Finish
26.22 mi13:09:193:06:027:067:21
7:13
-1:26

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

6:38 /mi

Average Pace

7:06 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:32

56% of race

Time at Steady Pace

34:55

19% of race

Time at Slower Pace

46:35

25% of race

Average Pace: 7:06 /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 mi10:24:3821:216:5221:21
6:52
#5328
10K
6.21 mi10:45:3042:136:4820:52
6:43
#4920
15K
9.32 mi11:06:071:02:506:4420:37
6:38
#4424
20K
12.43 mi11:26:551:23:386:4420:48
6:42
#4167
Half
13.11 mi11:31:281:28:116:444:33
6:40
#4156
25K
15.53 mi11:47:491:44:326:4416:21
6:45
#4050
30K
18.64 mi12:09:512:06:346:4722:02
7:06
#4217
20M
20.00 mi12:20:132:16:566:5110:22
7:38
#4559
21M
21.00 mi12:28:212:25:046:548:08
8:08
#4793
35K
21.75 mi12:33:532:30:366:555:32
7:24
#4908
23M
23.00 mi12:44:042:40:476:5910:11
8:08
#5170
24M
24.00 mi12:52:072:48:507:028:03
8:03
#5357
40K
24.85 mi12:58:592:55:427:046:52
8:02
#5468
25.2M
25.20 mi13:01:582:58:417:052:59
8:39
#5504
Finish
26.22 mi13:09:193:06:027:067:21
7:13
#5485
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5328492649263596(Top 14%)3400(Top 22%)3400(Top 64%)
10K6.21 mi3.10 mi4920+4084565+3614565+3614514(Top 17%)4219(Top 28%)4219(Top 80%)
15K9.32 mi3.11 mi4424+4964140+4254140+4253596(Top 14%)3400(Top 22%)3400(Top 64%)
20K12.43 mi3.11 mi4167+2573910+2303910+2303556(Top 13%)3365(Top 22%)3365(Top 64%)
Half13.11 mi0.68 mi4156+113901+93901+94101(Top 15%)3853(Top 25%)3853(Top 73%)
25K15.53 mi2.42 mi4050+1063807+943807+943712(Top 14%)3497(Top 23%)3497(Top 66%)
30K18.64 mi3.11 mi4217-1673959-1523959-1524892(Top 18%)4504(Top 30%)4504(Top 85%)
20M20.00 mi1.36 mi4559-3424251-2924251-2927643(Top 29%)6359(Top 42%)6359(Top 120%)
21M21.00 mi1.00 mi4793-2344454-2034454-2038163(Top 31%)6561(Top 43%)6561(Top 124%)
35K21.75 mi0.75 mi4908-1154551-974551-977710(Top 29%)6306(Top 42%)6306(Top 119%)
23M23.00 mi1.25 mi5170-2624752-2014752-20110663(Top 40%)7787(Top 51%)7787(Top 147%)
24M24.00 mi1.00 mi5357-1874907-1554907-15511534(Top 43%)8157(Top 54%)8157(Top 154%)
40K24.85 mi0.85 mi5468-1114988-814988-8110200(Top 38%)7421(Top 49%)7421(Top 140%)
25.2M25.20 mi0.35 mi5504-365015-275015-2710331(Top 39%)7429(Top 49%)7429(Top 141%)
Finish26.22 mi1.02 mi5485+194988+274988+276491(Top 24%)5242(Top 35%)5242(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3596

Males

3400

M18-39

3400

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4514

Males

4219

M18-39

4219

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3596

Males

3400

M18-39

3400

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3556

Males

3365

M18-39

3365

20K→Half

12.4 - 13.1 mi

Top 15%
×2story building
+19ft-37ft

Overall

4101

Males

3853

M18-39

3853

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3712

Males

3497

M18-39

3497

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4892

Males

4504

M18-39

4504

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7643

Males

6359

M18-39

6359

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8163

Males

6561

M18-39

6561

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7710

Males

6306

M18-39

6306

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

10663

Males

7787

M18-39

7787

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11534

Males

8157

M18-39

8157

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10200

Males

7421

M18-39

7421

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10331

Males

7429

M18-39

7429

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6491

Males

5242

M18-39

5242

Passing Analysis

Category:
Athletes Passed
1639
Passed By
1796
Net Change
-157
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5328
5K → 10K46658+408#5328#4920
10K → 15K5037+496#4920#4424
15K → 20K2647+257#4424#4167
20K → Half2716+11#4167#4156
Half → 25K13125+106#4156#4050
25K → 30K71238-167#4050#4217
30K → 20M18360-342#4217#4559
20M → 21M12246-234#4559#4793
21M → 35K19134-115#4793#4908
35K → 23M17279-262#4908#5170
23M → 24M16203-187#5170#5357
24M → 40K18129-111#5357#5468
40K → 25.2M1349-36#5468#5504
25.2M → Finish6445+19#5504#5485
TOTALS16391796-157
📊

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