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BOSTON MARATHON 2023

Greg Collins

Bib: 16712•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M55-59)
#0 / 1422
Top 17%
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
7:28/mi
23:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:08:47
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:32:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:37:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:56:07
↑ 66↓ 880.2%
30K· 18.64 mi
7:49/mi
2:20:23
↑ 181↓ 1480.2%
20M
7:55/mi
2:31:08
↑ 64↓ 500.2%
21M
8:19/mi
2:39:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:45:02
↑ 17↓ 861.7%
23M
7:41/mi
2:54:39
↑ 23↓ 630.6%
24M
7:24/mi
3:02:03
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:08:32
↓ 200.3%
25.2M
7:58/mi
3:11:17
↑ 13↓ 160.2%
Finish· 26.22 mi
7:02/mi
3:18:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:26
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:41:01
Pace7:42 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2323:127:2823:12
7:28
-
10K
6.21 mi11:35:5545:447:2222:32
7:15
-0:13
15K
9.32 mi11:58:581:08:477:2323:03
7:25
+0:10
20K
12.43 mi12:22:341:32:237:2623:36
7:36
+0:11
Half
13.11 mi12:27:371:37:267:265:03
7:24
-0:12
25K
15.53 mi12:46:181:56:077:2818:41
7:42
+0:18
30K
18.64 mi13:10:342:20:237:3224:16
7:49
+0:07
20M
20.00 mi13:21:192:31:087:3310:45
7:55
+0:06
21M
21.00 mi13:29:382:39:277:368:19
8:19
+0:24
35K
21.75 mi13:35:132:45:027:355:35
7:28
-0:51
23M
23.00 mi13:44:502:54:397:369:37
7:41
+0:13
24M
24.00 mi13:52:143:02:037:357:24
7:24
-0:17
40K
24.85 mi13:58:433:08:327:356:29
7:35
+0:11
25.2M
25.20 mi14:01:283:11:177:352:45
7:58
+0:23
Finish
26.22 mi14:08:383:18:277:347:10
7:02
-0:56

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

7:02 /mi

Average Pace

7:34 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:22

77% of race

Time at Steady Pace

37:46

19% of race

Time at Slower Pace

8:19

4% of race

Average Pace: 7:34 /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 mi11:13:2323:127:2823:12
7:28
#9342
10K
6.21 mi11:35:5545:447:2222:32
7:15
#8885
15K
9.32 mi11:58:581:08:477:2323:03
7:25
#9041
20K
12.43 mi12:22:341:32:237:2623:36
7:36
#9274
Half
13.11 mi12:27:371:37:267:265:03
7:24
#9272
25K
15.53 mi12:46:181:56:077:2818:41
7:42
#9425
30K
18.64 mi13:10:342:20:237:3224:16
7:49
#9405
20M
20.00 mi13:21:192:31:087:3310:45
7:55
#9412
21M
21.00 mi13:29:382:39:277:368:19
8:19
#9363
35K
21.75 mi13:35:132:45:027:355:35
7:28
#9304
23M
23.00 mi13:44:502:54:397:369:37
7:41
#9187
24M
24.00 mi13:52:143:02:037:357:24
7:24
#9057
40K
24.85 mi13:58:433:08:327:356:29
7:35
#8960
25.2M
25.20 mi14:01:283:11:177:352:45
7:58
#8901
Finish
26.22 mi14:08:383:18:277:347:10
7:02
#8729
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi9342777877789493(Top 36%)7862(Top 52%)7862(Top 553%)
10K6.21 mi3.10 mi8885+4577508+2707508+2708504(Top 32%)7263(Top 48%)7263(Top 511%)
15K9.32 mi3.11 mi9041-1567585-777585-779493(Top 36%)7862(Top 52%)7862(Top 553%)
20K12.43 mi3.11 mi9274-2337712-1277712-12710049(Top 38%)8095(Top 53%)8095(Top 569%)
Half13.11 mi0.68 mi9272+2771277129382(Top 35%)7732(Top 51%)7732(Top 544%)
25K15.53 mi2.42 mi9425-1537790-787790-7810308(Top 39%)8152(Top 54%)8152(Top 573%)
30K18.64 mi3.11 mi9405+207738+527738+529427(Top 35%)7513(Top 50%)7513(Top 528%)
20M20.00 mi1.36 mi9412-77726+127726+129606(Top 36%)7522(Top 50%)7522(Top 529%)
21M21.00 mi1.00 mi9363+497675+517675+519298(Top 35%)7235(Top 48%)7235(Top 509%)
35K21.75 mi0.75 mi9304+597619+567619+568243(Top 31%)6644(Top 44%)6644(Top 467%)
23M23.00 mi1.25 mi9187+1177524+957524+957621(Top 29%)6197(Top 41%)6197(Top 436%)
24M24.00 mi1.00 mi9057+1307431+937431+937056(Top 27%)5752(Top 38%)5752(Top 405%)
40K24.85 mi0.85 mi8960+977351+807351+807206(Top 27%)5754(Top 38%)5754(Top 405%)
25.2M25.20 mi0.35 mi8901+597305+467305+466355(Top 24%)5191(Top 34%)5191(Top 365%)
Finish26.22 mi1.02 mi8729+1727175+1307175+1305407(Top 20%)4546(Top 30%)4546(Top 320%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9493

Males

7862

M55-59

7862

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8504

Males

7263

M55-59

7263

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9493

Males

7862

M55-59

7862

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10049

Males

8095

M55-59

8095

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9382

Males

7732

M55-59

7732

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10308

Males

8152

M55-59

8152

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9427

Males

7513

M55-59

7513

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9606

Males

7522

M55-59

7522

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9298

Males

7235

M55-59

7235

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8243

Males

6644

M55-59

6644

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7621

Males

6197

M55-59

6197

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7056

Males

5752

M55-59

5752

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7206

Males

5754

M55-59

5754

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6355

Males

5191

M55-59

5191

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5407

Males

4546

M55-59

4546

Passing Analysis

Category:
Athletes Passed
1883*
Passed By
1270
Net Change
+613
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9342
5K → 10K55194+457#9342#8885
10K → 15K93249-156#8885#9041
15K → 20K68301-233#9041#9274
20K → Half2826+2#9274#9272
Half → 25K72225-153#9272#9425
25K → 30K185*165+20#9425#9405
30K → 20M7986-7#9405#9412
20M → 21M10455+49#9412#9363
21M → 35K7617+59#9363#9304
35K → 23M14326+117#9304#9187
23M → 24M1399+130#9187#9057
24M → 40K1069+97#9057#8960
40K → 25.2M634+59#8960#8901
25.2M → Finish1764+172#8901#8729
TOTALS1883*1270+613

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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