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BOSTON MARATHON 2023

Jeffrey Guerra

Bib: 6588•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Masters (Masters Men)
#0 / 9891
Top 4%
Division (M40-44)
#0 / 2241
Top 10%
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
6:36/mi
20:30
↑ 97↓ 3451.5%
10K· 6.21 mi
6:31/mi
40:45
↑ 79↓ 1380.4%
15K· 9.32 mi
6:31/mi
1:01:01
↑ 67↓ 78
20K· 12.43 mi
6:32/mi
1:21:20
↑ 106↓ 860.1%
Half· 13.11 mi
6:25/mi
1:25:43
↑ 19↓ 370.5%
25K· 15.53 mi
6:29/mi
1:41:27
↑ 66↓ 880.2%
30K· 18.64 mi
6:33/mi
2:01:49
↑ 181↓ 1480.2%
20M
6:37/mi
2:10:48
↑ 64↓ 500.2%
21M
6:46/mi
2:17:34
↑ 106↓ 241.6%
35K· 21.75 mi
6:26/mi
2:22:23
↑ 17↓ 861.7%
23M
6:25/mi
2:30:25
↑ 23↓ 630.6%
24M
6:19/mi
2:36:44
↓ 821.3%
40K· 24.85 mi
6:22/mi
2:42:11
↓ 200.3%
25.2M
6:43/mi
2:44:30
↑ 13↓ 160.2%
Finish· 26.22 mi
5:54/mi
2:50:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:25:43
Pace6:32 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:24:48
Pace6:28 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0020:306:3620:30
6:36
-
10K
6.21 mi10:44:1540:456:3320:15
6:31
-0:05
15K
9.32 mi11:04:311:01:016:3320:16
6:31
0:00
20K
12.43 mi11:24:501:21:206:3320:19
6:32
+0:01
Half
13.11 mi11:29:131:25:436:324:23
6:25
-0:07
25K
15.53 mi11:44:571:41:276:3215:44
6:29
+0:04
30K
18.64 mi12:05:192:01:496:3220:22
6:33
+0:04
20M
20.00 mi12:14:182:10:486:328:59
6:37
+0:04
21M
21.00 mi12:21:042:17:346:336:46
6:46
+0:09
35K
21.75 mi12:25:532:22:236:334:49
6:26
-0:20
23M
23.00 mi12:33:552:30:256:328:02
6:25
-0:01
24M
24.00 mi12:40:142:36:446:326:19
6:19
-0:06
40K
24.85 mi12:45:412:42:116:325:27
6:22
+0:03
25.2M
25.20 mi12:48:002:44:306:322:19
6:43
+0:21
Finish
26.22 mi12:54:012:50:316:306:01
5:54
-0:49

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

5:54 /mi

Average Pace

6:30 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:45

30% of race

Time at Steady Pace

1:59:46

70% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:30 /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 mi10:24:0020:306:3620:30
6:36
#2834
10K
6.21 mi10:44:1540:456:3320:15
6:31
#2846
15K
9.32 mi11:04:311:01:016:3320:16
6:31
#2801
20K
12.43 mi11:24:501:21:206:3320:19
6:32
#2695
Half
13.11 mi11:29:131:25:436:324:23
6:25
#2671
25K
15.53 mi11:44:571:41:276:3215:44
6:29
#2574
30K
18.64 mi12:05:192:01:496:3220:22
6:33
#2396
20M
20.00 mi12:14:182:10:486:328:59
6:37
#2339
21M
21.00 mi12:21:042:17:346:336:46
6:46
#2258
35K
21.75 mi12:25:532:22:236:334:49
6:26
#2236
23M
23.00 mi12:33:552:30:256:328:02
6:25
#2130
24M
24.00 mi12:40:142:36:446:326:19
6:19
#2069
40K
24.85 mi12:45:412:42:116:325:27
6:22
#1998
25.2M
25.20 mi12:48:002:44:306:322:19
6:43
#1970
Finish
26.22 mi12:54:012:50:316:306:01
5:54
#1863
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2834269726972760(Top 10%)2636(Top 17%)2636(Top 118%)
10K6.21 mi3.10 mi2846-122712-152712-152895(Top 11%)2765(Top 18%)2765(Top 123%)
15K9.32 mi3.11 mi2801+452673+392673+392760(Top 10%)2636(Top 17%)2636(Top 118%)
20K12.43 mi3.11 mi2695+1062574+992574+992499(Top 9%)2392(Top 16%)2392(Top 107%)
Half13.11 mi0.68 mi2671+242552+222552+222310(Top 9%)2215(Top 15%)2215(Top 99%)
25K15.53 mi2.42 mi2574+972462+902462+902110(Top 8%)2023(Top 13%)2023(Top 90%)
30K18.64 mi3.11 mi2396+1782296+1662296+1661782(Top 7%)1705(Top 11%)1705(Top 76%)
20M20.00 mi1.36 mi2339+572243+532243+531899(Top 7%)1811(Top 12%)1811(Top 81%)
21M21.00 mi1.00 mi2258+812165+782165+781315(Top 5%)1256(Top 8%)1256(Top 56%)
35K21.75 mi0.75 mi2236+222143+222143+222109(Top 8%)2002(Top 13%)2002(Top 89%)
23M23.00 mi1.25 mi2130+1062042+1012042+1011164(Top 4%)1100(Top 7%)1100(Top 49%)
24M24.00 mi1.00 mi2069+611984+581984+581391(Top 5%)1317(Top 9%)1317(Top 59%)
40K24.85 mi0.85 mi1998+711914+701914+701134(Top 4%)1073(Top 7%)1073(Top 48%)
25.2M25.20 mi0.35 mi1970+281886+281886+28963(Top 4%)919(Top 6%)919(Top 41%)
Finish26.22 mi1.02 mi1863+1071781+1051781+105548(Top 2%)522(Top 3%)522(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2760

Males

2636

M40-44

2636

5K→10K

3.1 - 6.2 mi

Top 11%
×5story building
+79ft-138ft

Overall

2895

Males

2765

M40-44

2765

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2760

Males

2636

M40-44

2636

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2499

Males

2392

M40-44

2392

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2310

Males

2215

M40-44

2215

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2110

Males

2023

M40-44

2023

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

1782

Males

1705

M40-44

1705

30K→20M

18.6 - 20.0 mi

Top 7%
×5story building
+64ft-50ft

Overall

1899

Males

1811

M40-44

1811

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1315

Males

1256

M40-44

1256

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2109

Males

2002

M40-44

2002

35K→23M

21.8 - 23.0 mi

Top 4%
×5story building
+23ft-63ft

Overall

1164

Males

1100

M40-44

1100

23M→24M

23.0 - 24.0 mi

Top 5%
×6story building
+12ft-82ft

Overall

1391

Males

1317

M40-44

1317

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1134

Males

1073

M40-44

1073

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

963

Males

919

M40-44

919

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

548

Males

522

M40-44

522

Passing Analysis

Category:
Athletes Passed
1285
Passed By
314
Net Change
+971
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2834
5K → 10K152164-12#2834#2846
10K → 15K11873+45#2846#2801
15K → 20K12822+106#2801#2695
20K → Half295+24#2695#2671
Half → 25K1069+97#2671#2574
25K → 30K1868+178#2574#2396
30K → 20M6710+57#2396#2339
20M → 21M832+81#2339#2258
21M → 35K3210+22#2258#2236
35K → 23M1093+106#2236#2130
23M → 24M654+61#2130#2069
24M → 40K743+71#2069#1998
40K → 25.2M280+28#1998#1970
25.2M → Finish1081+107#1970#1863
TOTALS1285314+971
📊

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