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BOSTON MARATHON 2023

Mark Guildea

Bib: 13197•M

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 (M45-49)
#0 / 2252
Top 48%
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
7:24/mi
22:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:14/mi
45:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:16/mi
1:08:01
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:31:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:36:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:27/mi
1:54:11
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:17:42
↑ 181↓ 1480.2%
20M
7:39/mi
2:28:06
↑ 64↓ 500.2%
21M
8:17/mi
2:36:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:42:01
↑ 17↓ 861.7%
23M
8:05/mi
2:52:08
↑ 23↓ 630.6%
24M
7:54/mi
3:00:02
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:06:53
↓ 200.3%
25.2M
8:48/mi
3:09:55
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:18:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:07
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:42:06
Pace7:47 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0922:587:2422:58
7:24
-
10K
6.21 mi11:13:3645:257:1922:27
7:14
-0:10
15K
9.32 mi11:36:121:08:017:1822:36
7:16
+0:02
20K
12.43 mi11:59:161:31:057:2023:04
7:25
+0:09
Half
13.11 mi12:04:181:36:077:205:02
7:23
-0:02
25K
15.53 mi12:22:221:54:117:2118:04
7:27
+0:04
30K
18.64 mi12:45:532:17:427:2323:31
7:34
+0:07
20M
20.00 mi12:56:172:28:067:2410:24
7:39
+0:05
21M
21.00 mi13:04:342:36:237:278:17
8:17
+0:38
35K
21.75 mi13:10:122:42:017:275:38
7:32
-0:45
23M
23.00 mi13:20:192:52:087:2910:07
8:05
+0:33
24M
24.00 mi13:28:133:00:027:307:54
7:54
-0:11
40K
24.85 mi13:35:043:06:537:316:51
8:01
+0:07
25.2M
25.20 mi13:38:063:09:557:323:02
8:48
+0:47
Finish
26.22 mi13:46:243:18:137:348:18
8:09
-0:39

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

7:14 /mi

Average Pace

7:34 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:03

23% of race

Time at Steady Pace

1:48:41

55% of race

Time at Slower Pace

44:29

22% 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 mi10:51:0922:587:2422:58
7:24
#8761
10K
6.21 mi11:13:3645:257:1922:27
7:14
#8501
15K
9.32 mi11:36:121:08:017:1822:36
7:16
#8445
20K
12.43 mi11:59:161:31:057:2023:04
7:25
#8459
Half
13.11 mi12:04:181:36:077:205:02
7:23
#8498
25K
15.53 mi12:22:221:54:117:2118:04
7:27
#8440
30K
18.64 mi12:45:532:17:427:2323:31
7:34
#8259
20M
20.00 mi12:56:172:28:067:2410:24
7:39
#8210
21M
21.00 mi13:04:342:36:237:278:17
8:17
#8248
35K
21.75 mi13:10:122:42:017:275:38
7:32
#8246
23M
23.00 mi13:20:192:52:087:2910:07
8:05
#8350
24M
24.00 mi13:28:133:00:027:307:54
7:54
#8409
40K
24.85 mi13:35:043:06:537:316:51
8:01
#8459
25.2M
25.20 mi13:38:063:09:557:323:02
8:48
#8503
Finish
26.22 mi13:46:243:18:137:348:18
8:09
#8660
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8761745474548348(Top 31%)7141(Top 47%)7141(Top 317%)
10K6.21 mi3.10 mi8501+2607272+1827272+1828295(Top 31%)7143(Top 47%)7143(Top 317%)
15K9.32 mi3.11 mi8445+567239+337239+338348(Top 31%)7141(Top 47%)7141(Top 317%)
20K12.43 mi3.11 mi8459-147229+107229+108698(Top 33%)7313(Top 48%)7313(Top 325%)
Half13.11 mi0.68 mi8498-397256-277256-279175(Top 34%)7610(Top 50%)7610(Top 338%)
25K15.53 mi2.42 mi8440+587196+607196+608414(Top 32%)7075(Top 47%)7075(Top 314%)
30K18.64 mi3.11 mi8259+1817035+1617035+1617716(Top 29%)6524(Top 43%)6524(Top 290%)
20M20.00 mi1.36 mi8210+496987+486987+487834(Top 29%)6494(Top 43%)6494(Top 288%)
21M21.00 mi1.00 mi8248-386994-76994-79112(Top 34%)7127(Top 47%)7127(Top 316%)
35K21.75 mi0.75 mi8246+26981+136981+138694(Top 33%)6911(Top 46%)6911(Top 307%)
23M23.00 mi1.25 mi8350-1047031-507031-5010293(Top 39%)7631(Top 50%)7631(Top 339%)
24M24.00 mi1.00 mi8409-597043-127043-1210485(Top 39%)7640(Top 50%)7640(Top 339%)
40K24.85 mi0.85 mi8459-507053-107053-1010096(Top 38%)7377(Top 49%)7377(Top 328%)
25.2M25.20 mi0.35 mi8503-447076-237076-2311217(Top 42%)7880(Top 52%)7880(Top 350%)
Finish26.22 mi1.02 mi8660-1577140-647140-6413031(Top 49%)8776(Top 58%)8776(Top 390%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8348

Males

7141

M45-49

7141

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8295

Males

7143

M45-49

7143

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8348

Males

7141

M45-49

7141

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8698

Males

7313

M45-49

7313

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9175

Males

7610

M45-49

7610

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8414

Males

7075

M45-49

7075

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7716

Males

6524

M45-49

6524

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7834

Males

6494

M45-49

6494

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9112

Males

7127

M45-49

7127

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8694

Males

6911

M45-49

6911

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10293

Males

7631

M45-49

7631

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10485

Males

7640

M45-49

7640

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10096

Males

7377

M45-49

7377

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11217

Males

7880

M45-49

7880

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13031

Males

8776

M45-49

8776

Passing Analysis

Category:
Athletes Passed
1440
Passed By
1339
Net Change
+101
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8761
5K → 10K396136+260#8761#8501
10K → 15K163107+56#8501#8445
15K → 20K133147-14#8445#8459
20K → Half847-39#8459#8498
Half → 25K12668+58#8498#8440
25K → 30K23655+181#8440#8259
30K → 20M9849+49#8259#8210
20M → 21M5189-38#8210#8248
21M → 35K4745+2#8248#8246
35K → 23M50154-104#8246#8350
23M → 24M49108-59#8350#8409
24M → 40K4191-50#8409#8459
40K → 25.2M1862-44#8459#8503
25.2M → Finish24181-157#8503#8660
TOTALS14401339+101
📊

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