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BOSTON MARATHON 2023

Daniel Derosa

Bib: 5027•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 50%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
6:49/mi
21:11
↑ 97↓ 3451.5%
10K· 6.21 mi
6:42/mi
42:01
↑ 79↓ 1380.4%
15K· 9.32 mi
6:42/mi
1:02:50
↑ 67↓ 78
20K· 12.43 mi
6:44/mi
1:23:45
↑ 106↓ 860.1%
Half· 13.11 mi
6:40/mi
1:28:18
↑ 19↓ 370.5%
25K· 15.53 mi
11:21/mi
1:55:48
↑ 66↓ 880.2%
30K· 18.64 mi
10:23/mi
2:28:03
↑ 181↓ 1480.2%
20M
7:27/mi
2:38:10
↑ 64↓ 500.2%
21M
10:49/mi
2:48:59
↑ 106↓ 241.6%
35K· 21.75 mi
8:09/mi
2:55:05
↑ 17↓ 861.7%
23M
9:45/mi
3:07:18
↑ 23↓ 630.6%
24M
8:22/mi
3:15:40
↓ 821.3%
40K· 24.85 mi
9:00/mi
3:23:22
↓ 200.3%
25.2M
8:27/mi
3:26:17
↑ 13↓ 160.2%
Finish· 26.22 mi
7:03/mi
3:33:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:18
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time2:05:10
Pace9:33 /mi
📊Positive Split: 41.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4521:116:4921:11
6:49
-
10K
6.21 mi10:44:3542:016:4620:50
6:42
-0:07
15K
9.32 mi11:05:241:02:506:4420:49
6:42
0:00
20K
12.43 mi11:26:191:23:456:4420:55
6:44
+0:02
Half
13.11 mi11:30:521:28:186:444:33
6:40
-0:04
25K
15.53 mi11:58:221:55:487:2727:30
11:21
+4:41
30K
18.64 mi12:30:372:28:037:5732:15
10:23
-0:58
20M
20.00 mi12:40:442:38:107:5410:07
7:27
-2:56
21M
21.00 mi12:51:332:48:598:0310:49
10:49
+3:22
35K
21.75 mi12:57:392:55:058:036:06
8:09
-2:40
23M
23.00 mi13:09:523:07:188:0912:13
9:45
+1:36
24M
24.00 mi13:18:143:15:408:098:22
8:22
-1:23
40K
24.85 mi13:25:563:23:228:117:42
9:00
+0:38
25.2M
25.20 mi13:28:513:26:178:112:55
8:27
-0:33
Finish
26.22 mi13:36:023:33:288:097:11
7:03
-1:24

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

6:40 /mi

Average Pace

8:09 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:29

45% of race

Time at Steady Pace

27:30

13% of race

Time at Slower Pace

1:30:29

42% of race

Average Pace: 8:08 /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 mi10:23:4521:116:4921:11
6:49
#4861
10K
6.21 mi10:44:3542:016:4620:50
6:42
#4619
15K
9.32 mi11:05:241:02:506:4420:49
6:42
#4430
20K
12.43 mi11:26:191:23:456:4420:55
6:44
#4250
Half
13.11 mi11:30:521:28:186:444:33
6:40
#4230
25K
15.53 mi11:58:221:55:487:2727:30
11:21
#9274
30K
18.64 mi12:30:372:28:037:5732:15
10:23
#12832
20M
20.00 mi12:40:442:38:107:5410:07
7:27
#12274
21M
21.00 mi12:51:332:48:598:0310:49
10:49
#13033
35K
21.75 mi12:57:392:55:058:036:06
8:09
#13015
23M
23.00 mi13:09:523:07:188:0912:13
9:45
#13541
24M
24.00 mi13:18:143:15:408:098:22
8:22
#13521
40K
24.85 mi13:25:563:23:228:117:42
9:00
#13626
25.2M
25.20 mi13:28:513:26:178:112:55
8:27
#13544
Finish
26.22 mi13:36:023:33:288:097:11
7:03
#13179
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4861452045204152(Top 16%)3898(Top 26%)3898(Top 174%)
10K6.21 mi3.10 mi4619+2424313+2074313+2074406(Top 17%)4125(Top 27%)4125(Top 184%)
15K9.32 mi3.11 mi4430+1894146+1674146+1674152(Top 16%)3898(Top 26%)3898(Top 174%)
20K12.43 mi3.11 mi4250+1803985+1613985+1613839(Top 14%)3621(Top 24%)3621(Top 162%)
Half13.11 mi0.68 mi4230+203965+203965+204130(Top 16%)3882(Top 26%)3882(Top 173%)
25K15.53 mi2.42 mi9274-50447710-37457710-374524461(Top 92%)14230(Top 94%)14230(Top 635%)
30K18.64 mi3.11 mi12832-35589363-16539363-165321950(Top 82%)13049(Top 86%)13049(Top 582%)
20M20.00 mi1.36 mi12274+5589113+2509113+2506449(Top 24%)5618(Top 37%)5618(Top 251%)
21M21.00 mi1.00 mi13033-7599412-2999412-29920400(Top 77%)12229(Top 81%)12229(Top 546%)
35K21.75 mi0.75 mi13015+189388+249388+2413121(Top 49%)9036(Top 60%)9036(Top 403%)
23M23.00 mi1.25 mi13541-5269584-1969584-19619265(Top 72%)11675(Top 77%)11675(Top 521%)
24M24.00 mi1.00 mi13521+209550+349550+3413613(Top 51%)9137(Top 60%)9137(Top 408%)
40K24.85 mi0.85 mi13626-1059573-239573-2316129(Top 61%)10173(Top 67%)10173(Top 454%)
25.2M25.20 mi0.35 mi13544+829532+419532+419249(Top 35%)6909(Top 46%)6909(Top 308%)
Finish26.22 mi1.02 mi13179+3659358+1749358+1745525(Top 21%)4617(Top 30%)4617(Top 206%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21story building
+97ft-345ft

Overall

4152

Males

3898

M40-44

3898

5K→10K

3.1 - 6.2 mi

Top 17%
×5story building
+79ft-138ft

Overall

4406

Males

4125

M40-44

4125

10K→15K

6.2 - 9.3 mi

Top 16%
×3story building
+67ft-78ft

Overall

4152

Males

3898

M40-44

3898

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

3839

Males

3621

M40-44

3621

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4130

Males

3882

M40-44

3882

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

24461

Males

14230

M40-44

14230

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21950

Males

13049

M40-44

13049

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6449

Males

5618

M40-44

5618

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20400

Males

12229

M40-44

12229

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13121

Males

9036

M40-44

9036

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19265

Males

11675

M40-44

11675

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13613

Males

9137

M40-44

9137

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16129

Males

10173

M40-44

10173

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9249

Males

6909

M40-44

6909

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5525

Males

4617

M40-44

4617

Passing Analysis

Category:
Athletes Passed
2033
Passed By
10349
Net Change
-8318
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4861
5K → 10K344102+242#4861#4619
10K → 15K24354+189#4619#4430
15K → 20K20323+180#4430#4250
20K → Half3212+20#4250#4230
Half → 25K05044-5044#4230#9274
25K → 30K23558-3558#9274#12832
30K → 20M5580+558#12832#12274
20M → 21M10769-759#12274#13033
21M → 35K5840+18#13033#13015
35K → 23M15541-526#13015#13541
23M → 24M8161+20#13541#13521
24M → 40K36141-105#13521#13626
40K → 25.2M820+82#13626#13544
25.2M → Finish3694+365#13544#13179
TOTALS203310349-8318
📊

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