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BOSTON MARATHON 2023

Brendan Davis

Bib: 3347•M

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Division (M18-39)
#0 / 5285
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:21
Rank: #2541
Start → 5K
20:21 | 6:33/mi
10K· 6.21 mi
40:17
Rank: #2396 (+145)
5K → 10K
19:56 | 6:25/mi
15K· 9.32 mi
1:00:14
Rank: #2327 (+69)
10K → 15K
19:57 | 6:25/mi
20K· 12.43 mi
1:20:26
Rank: #2303 (+24)
15K → 20K
20:12 | 6:30/mi
Half· 13.11 mi
1:24:48
Rank: #2297 (+6)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:40:38
Rank: #2295 (+2)
Half → 25K
15:50 | 6:32/mi
30K· 18.64 mi
2:01:00
Rank: #2181 (+114)
25K → 30K
20:22 | 6:33/mi
20M
2:09:57
Rank: #2121 (+60)
30K → 20M
8:57 | 6:35/mi
21M
2:16:45
Rank: #2064 (+57)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:21:19
Rank: #2004 (+60)
21M → 35K
4:34 | 6:06/mi
23M
2:29:13
Rank: #1877 (+127)
35K → 23M
7:54 | 6:19/mi
24M
2:35:24
Rank: #1813 (+64)
23M → 24M
6:11 | 6:11/mi
40K· 24.85 mi
2:40:47
Rank: #1743 (+70)
24M → 40K
5:23 | 6:18/mi
25.2M
2:42:55
Rank: #1685 (+58)
40K → 25.2M
2:08 | 6:11/mi
Finish· 26.22 mi
2:49:13
Rank: #1644 (+41)
25.2M → Finish
6:18 | 6:11/mi

Course Map & Elevation

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:24:48
Pace6:28 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:25
Pace6:26 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4120:216:3320:21
6:33
-
10K
6.21 mi10:41:3740:176:2919:56
6:25
-0:08
15K
9.32 mi11:01:341:00:146:2819:57
6:25
0:00
20K
12.43 mi11:21:461:20:266:2820:12
6:30
+0:05
Half
13.11 mi11:26:081:24:486:284:22
6:24
-0:06
25K
15.53 mi11:41:581:40:386:2915:50
6:32
+0:08
30K
18.64 mi12:02:202:01:006:2920:22
6:33
+0:01
20M
20.00 mi12:11:172:09:576:308:57
6:35
+0:02
21M
21.00 mi12:18:052:16:456:316:48
6:48
+0:13
35K
21.75 mi12:22:392:21:196:304:34
6:06
-0:42
23M
23.00 mi12:30:332:29:136:297:54
6:19
+0:13
24M
24.00 mi12:36:442:35:246:296:11
6:11
-0:08
40K
24.85 mi12:42:072:40:476:285:23
6:18
+0:07
25.2M
25.20 mi12:44:152:42:556:282:08
6:11
-0:07
Finish
26.22 mi12:50:332:49:136:286:18
6:11
0:00

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

6:06 /mi

Average Pace

6:28 /mi

Slowest Pace

6:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:42:25

96% of race

Time at Steady Pace

6:48

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:4120:216:3320:21
6:33
#2541
10K
6.21 mi10:41:3740:176:2919:56
6:25
#2396
15K
9.32 mi11:01:341:00:146:2819:57
6:25
#2327
20K
12.43 mi11:21:461:20:266:2820:12
6:30
#2303
Half
13.11 mi11:26:081:24:486:284:22
6:24
#2297
25K
15.53 mi11:41:581:40:386:2915:50
6:32
#2295
30K
18.64 mi12:02:202:01:006:2920:22
6:33
#2181
20M
20.00 mi12:11:172:09:576:308:57
6:35
#2121
21M
21.00 mi12:18:052:16:456:316:48
6:48
#2064
35K
21.75 mi12:22:392:21:196:304:34
6:06
#2004
23M
23.00 mi12:30:332:29:136:297:54
6:19
#1877
24M
24.00 mi12:36:442:35:246:296:11
6:11
#1813
40K
24.85 mi12:42:072:40:476:285:23
6:18
#1743
25.2M
25.20 mi12:44:152:42:556:282:08
6:11
#1685
Finish
26.22 mi12:50:332:49:136:286:18
6:11
#1644
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2541242424242204(Top 8%)2113(Top 14%)2113(Top 40%)
10K6.21 mi3.10 mi2396+1452287+1372287+1372313(Top 9%)2214(Top 15%)2214(Top 42%)
15K9.32 mi3.11 mi2327+692228+592228+592204(Top 8%)2113(Top 14%)2113(Top 40%)
20K12.43 mi3.11 mi2303+242207+212207+212283(Top 9%)2188(Top 14%)2188(Top 41%)
Half13.11 mi0.68 mi2297+62201+62201+62185(Top 8%)2095(Top 14%)2095(Top 40%)
25K15.53 mi2.42 mi2295+22200+12200+12312(Top 9%)2214(Top 15%)2214(Top 42%)
30K18.64 mi3.11 mi2181+1142093+1072093+1071777(Top 7%)1700(Top 11%)1700(Top 32%)
20M20.00 mi1.36 mi2121+602032+612032+611788(Top 7%)1704(Top 11%)1704(Top 32%)
21M21.00 mi1.00 mi2064+571977+551977+551400(Top 5%)1334(Top 9%)1334(Top 25%)
35K21.75 mi0.75 mi2004+601920+571920+57966(Top 4%)918(Top 6%)918(Top 17%)
23M23.00 mi1.25 mi1877+1271797+1231797+123872(Top 3%)828(Top 5%)828(Top 16%)
24M24.00 mi1.00 mi1813+641733+641733+64983(Top 4%)932(Top 6%)932(Top 18%)
40K24.85 mi0.85 mi1743+701667+661667+66899(Top 3%)852(Top 6%)852(Top 16%)
25.2M25.20 mi0.35 mi1685+581610+571610+57144(Top 0.5%)127(Top 0.8%)127(Top 2%)
Finish26.22 mi1.02 mi1644+411568+421568+421248(Top 5%)1181(Top 8%)1181(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2204

Males

2113

M18-39

2113

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2313

Males

2214

M18-39

2214

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2204

Males

2113

M18-39

2113

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2283

Males

2188

M18-39

2188

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2185

Males

2095

M18-39

2095

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2312

Males

2214

M18-39

2214

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1777

Males

1700

M18-39

1700

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1788

Males

1704

M18-39

1704

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1400

Males

1334

M18-39

1334

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

966

Males

918

M18-39

918

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

872

Males

828

M18-39

828

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

983

Males

932

M18-39

932

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

899

Males

852

M18-39

852

40K→25.2M

24.9 - 25.2 mi

Top 0.5%
×1story
+13ft-16ft

Overall

144

Males

127

M18-39

127

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1248

Males

1181

M18-39

1181

Passing Analysis

Category:
Athletes Passed
1176
Passed By
279
Net Change
+897
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2541
5K → 10K21671+145#2541#2396
10K → 15K11849+69#2396#2327
15K → 20K7652+24#2327#2303
20K → Half137+6#2303#2297
Half → 25K5048+2#2297#2295
25K → 30K13319+114#2295#2181
30K → 20M7212+60#2181#2121
20M → 21M614+57#2121#2064
21M → 35K611+60#2064#2004
35K → 23M1292+127#2004#1877
23M → 24M673+64#1877#1813
24M → 40K722+70#1813#1743
40K → 25.2M580+58#1743#1685
25.2M → Finish509+41#1685#1644
TOTALS1176279+897
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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