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BOSTON MARATHON 2023

Greg Gundelfinger

Bib: 3488•M

OH

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0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:08
Rank: #2158
Start → 5K
20:08 | 6:29/mi
10K· 6.21 mi
39:39
Rank: #1897 (+261)
5K → 10K
19:31 | 6:17/mi
15K· 9.32 mi
59:02
Rank: #1720 (+177)
10K → 15K
19:23 | 6:14/mi
20K· 12.43 mi
1:18:24
Rank: #1557 (+163)
15K → 20K
19:22 | 6:14/mi
Half· 13.11 mi
1:22:40
Rank: #1566 (-9)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:37:55
Rank: #1499 (+67)
Half → 25K
15:15 | 6:17/mi
30K· 18.64 mi
1:57:45
Rank: #1399 (+100)
25K → 30K
19:50 | 6:23/mi
20M
2:06:36
Rank: #1401 (-2)
30K → 20M
8:51 | 6:31/mi
21M
2:13:26
Rank: #1392 (+9)
20M → 21M
6:50 | 6:50/mi
35K· 21.75 mi
2:18:04
Rank: #1379 (+13)
21M → 35K
4:38 | 6:12/mi
23M
2:26:07
Rank: #1339 (+40)
35K → 23M
8:03 | 6:26/mi
24M
2:32:23
Rank: #1312 (+27)
23M → 24M
6:16 | 6:16/mi
40K· 24.85 mi
2:37:54
Rank: #1304 (+8)
24M → 40K
5:31 | 6:27/mi
25.2M
2:40:16
Rank: #1294 (+10)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:46:31
Rank: #1264 (+30)
25.2M → Finish
6:15 | 6:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:40
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:23:51
Pace6:24 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3320:086:2920:08
6:29
-
10K
6.21 mi10:41:0439:396:2319:31
6:17
-0:12
15K
9.32 mi11:00:2759:026:2019:23
6:14
-0:03
20K
12.43 mi11:19:491:18:246:1919:22
6:14
0:00
Half
13.11 mi11:24:051:22:406:184:16
6:15
+0:01
25K
15.53 mi11:39:201:37:556:1815:15
6:17
+0:02
30K
18.64 mi11:59:101:57:456:1919:50
6:23
+0:06
20M
20.00 mi12:08:012:06:366:208:51
6:31
+0:08
21M
21.00 mi12:14:512:13:266:216:50
6:50
+0:19
35K
21.75 mi12:19:292:18:046:214:38
6:12
-0:38
23M
23.00 mi12:27:322:26:076:218:03
6:26
+0:14
24M
24.00 mi12:33:482:32:236:216:16
6:16
-0:10
40K
24.85 mi12:39:192:37:546:215:31
6:27
+0:11
25.2M
25.20 mi12:41:412:40:166:222:22
6:52
+0:25
Finish
26.22 mi12:47:562:46:316:216:15
6:08
-0:44

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

6:08 /mi

Average Pace

6:21 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:19

94% of race

Time at Steady Pace

9:12

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:21 /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 mi10:21:3320:086:2920:08
6:29
#2158
10K
6.21 mi10:41:0439:396:2319:31
6:17
#1897
15K
9.32 mi11:00:2759:026:2019:23
6:14
#1720
20K
12.43 mi11:19:491:18:246:1919:22
6:14
#1557
Half
13.11 mi11:24:051:22:406:184:16
6:15
#1566
25K
15.53 mi11:39:201:37:556:1815:15
6:17
#1499
30K
18.64 mi11:59:101:57:456:1919:50
6:23
#1399
20M
20.00 mi12:08:012:06:366:208:51
6:31
#1401
21M
21.00 mi12:14:512:13:266:216:50
6:50
#1392
35K
21.75 mi12:19:292:18:046:214:38
6:12
#1379
23M
23.00 mi12:27:322:26:076:218:03
6:26
#1339
24M
24.00 mi12:33:482:32:236:216:16
6:16
#1312
40K
24.85 mi12:39:192:37:546:215:31
6:27
#1304
25.2M
25.20 mi12:41:412:40:166:222:22
6:52
#1294
Finish
26.22 mi12:47:562:46:316:216:15
6:08
#1264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2158205720571379(Top 5%)1313(Top 9%)1313(Top 25%)
10K6.21 mi3.10 mi1897+2611817+2401817+2401687(Top 6%)1613(Top 11%)1613(Top 31%)
15K9.32 mi3.11 mi1720+1771643+1741643+1741379(Top 5%)1313(Top 9%)1313(Top 25%)
20K12.43 mi3.11 mi1557+1631488+1551488+1551157(Top 4%)1104(Top 7%)1104(Top 21%)
Half13.11 mi0.68 mi1566-91496-81496-81576(Top 6%)1511(Top 10%)1511(Top 29%)
25K15.53 mi2.42 mi1499+671432+641432+641296(Top 5%)1239(Top 8%)1239(Top 23%)
30K18.64 mi3.11 mi1399+1001337+951337+951169(Top 4%)1114(Top 7%)1114(Top 21%)
20M20.00 mi1.36 mi1401-21339-21339-21475(Top 6%)1404(Top 9%)1404(Top 27%)
21M21.00 mi1.00 mi1392+91329+101329+101498(Top 6%)1427(Top 9%)1427(Top 27%)
35K21.75 mi0.75 mi1379+131316+131316+131219(Top 5%)1162(Top 8%)1162(Top 22%)
23M23.00 mi1.25 mi1339+401276+401276+401198(Top 5%)1132(Top 7%)1132(Top 21%)
24M24.00 mi1.00 mi1312+271251+251251+251244(Top 5%)1178(Top 8%)1178(Top 22%)
40K24.85 mi0.85 mi1304+81243+81243+81373(Top 5%)1296(Top 9%)1296(Top 25%)
25.2M25.20 mi0.35 mi1294+101233+101233+101312(Top 5%)1242(Top 8%)1242(Top 24%)
Finish26.22 mi1.02 mi1264+301205+281205+281080(Top 4%)1029(Top 7%)1029(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1379

Males

1313

M18-39

1313

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1687

Males

1613

M18-39

1613

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1379

Males

1313

M18-39

1313

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1157

Males

1104

M18-39

1104

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1576

Males

1511

M18-39

1511

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1296

Males

1239

M18-39

1239

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1169

Males

1114

M18-39

1114

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1475

Males

1404

M18-39

1404

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1498

Males

1427

M18-39

1427

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1219

Males

1162

M18-39

1162

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1198

Males

1132

M18-39

1132

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1244

Males

1178

M18-39

1178

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1373

Males

1296

M18-39

1296

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1312

Males

1242

M18-39

1242

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1080

Males

1029

M18-39

1029

Passing Analysis

Category:
Athletes Passed
1039
Passed By
145
Net Change
+894
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2158
5K → 10K27716+261#2158#1897
10K → 15K1858+177#1897#1720
15K → 20K1652+163#1720#1557
20K → Half514-9#1557#1566
Half → 25K714+67#1566#1499
25K → 30K11717+100#1499#1399
30K → 20M1921-2#1399#1401
20M → 21M2415+9#1401#1392
21M → 35K196+13#1392#1379
35K → 23M477+40#1379#1339
23M → 24M369+27#1339#1312
24M → 40K1911+8#1312#1304
40K → 25.2M155+10#1304#1294
25.2M → Finish4010+30#1294#1264
TOTALS1039145+894
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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