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BOSTON MARATHON 2023

George Krall

Bib: 25105•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
9:12/mi
28:34
↑ 97↓ 3451.5%
10K· 6.21 mi
8:52/mi
56:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:23:33
↑ 67↓ 78
20K· 12.43 mi
9:08/mi
1:51:55
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
1:58:12
↑ 19↓ 370.5%
25K· 15.53 mi
9:22/mi
2:20:54
↑ 66↓ 880.2%
30K· 18.64 mi
9:40/mi
2:50:55
↑ 181↓ 1480.2%
20M
9:50/mi
3:04:17
↑ 64↓ 500.2%
21M
10:12/mi
3:14:29
↑ 106↓ 241.6%
35K· 21.75 mi
9:52/mi
3:21:52
↑ 17↓ 861.7%
23M
9:55/mi
3:34:17
↑ 23↓ 630.6%
24M
9:49/mi
3:44:06
↓ 821.3%
40K· 24.85 mi
9:47/mi
3:52:28
↓ 200.3%
25.2M
9:52/mi
3:55:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:58/mi
4:05:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:12
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:06:48
Pace9:40 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2028:349:1228:34
9:12
-
10K
6.21 mi12:11:5456:089:0227:34
8:52
-0:20
15K
9.32 mi12:39:191:23:338:5827:25
8:49
-0:03
20K
12.43 mi13:07:411:51:559:0028:22
9:08
+0:19
Half
13.11 mi13:13:581:58:129:016:17
9:13
+0:05
25K
15.53 mi13:36:402:20:549:0422:42
9:22
+0:09
30K
18.64 mi14:06:412:50:559:1030:01
9:40
+0:18
20M
20.00 mi14:20:033:04:179:1313:22
9:50
+0:10
21M
21.00 mi14:30:153:14:299:1610:12
10:12
+0:22
35K
21.75 mi14:37:383:21:529:177:23
9:52
-0:20
23M
23.00 mi14:50:033:34:179:1912:25
9:55
+0:03
24M
24.00 mi14:59:523:44:069:209:49
9:49
-0:06
40K
24.85 mi15:08:143:52:289:218:22
9:47
-0:02
25.2M
25.20 mi15:11:383:55:529:223:24
9:52
+0:05
Finish
26.22 mi15:20:464:05:009:219:08
8:58
-0:54

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

8:49 /mi

Average Pace

9:21 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:03

73% of race

Time at Steady Pace

1:04:57

27% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:21 /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 mi11:44:2028:349:1228:34
9:12
#21194
10K
6.21 mi12:11:5456:089:0227:34
8:52
#20781
15K
9.32 mi12:39:191:23:338:5827:25
8:49
#20406
20K
12.43 mi13:07:411:51:559:0028:22
9:08
#20391
Half
13.11 mi13:13:581:58:129:016:17
9:13
#20444
25K
15.53 mi13:36:402:20:549:0422:42
9:22
#20434
30K
18.64 mi14:06:412:50:559:1030:01
9:40
#20334
20M
20.00 mi14:20:033:04:179:1313:22
9:50
#20301
21M
21.00 mi14:30:153:14:299:1610:12
10:12
#20193
35K
21.75 mi14:37:383:21:529:177:23
9:52
#20225
23M
23.00 mi14:50:033:34:179:1912:25
9:55
#20183
24M
24.00 mi14:59:523:44:069:209:49
9:49
#20194
40K
24.85 mi15:08:143:52:289:218:22
9:47
#20163
25.2M
25.20 mi15:11:383:55:529:223:24
9:52
#20110
Finish
26.22 mi15:20:464:05:009:219:08
8:58
#20032
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21194127031270319648(Top 74%)12154(Top 80%)12154(Top 230%)
10K6.21 mi3.10 mi20781+41312571+13212571+13220295(Top 76%)12407(Top 82%)12407(Top 235%)
15K9.32 mi3.11 mi20406+37512423+14812423+14819648(Top 74%)12154(Top 80%)12154(Top 230%)
20K12.43 mi3.11 mi20391+1512432-912432-920273(Top 76%)12425(Top 82%)12425(Top 235%)
Half13.11 mi0.68 mi20444-5312458-2612458-2621157(Top 79%)12789(Top 84%)12789(Top 242%)
25K15.53 mi2.42 mi20434+1012464-612464-620383(Top 77%)12444(Top 82%)12444(Top 235%)
30K18.64 mi3.11 mi20334+10012397+6712397+6720007(Top 75%)12214(Top 80%)12214(Top 231%)
20M20.00 mi1.36 mi20301+3312365+3212365+3219963(Top 75%)12113(Top 80%)12113(Top 229%)
21M21.00 mi1.00 mi20193+10812313+5212313+5218700(Top 70%)11519(Top 76%)11519(Top 218%)
35K21.75 mi0.75 mi20225-3212315-212315-220902(Top 79%)12442(Top 82%)12442(Top 235%)
23M23.00 mi1.25 mi20183+4212291+2412291+2419725(Top 74%)11892(Top 78%)11892(Top 225%)
24M24.00 mi1.00 mi20194-1112284+712284+720269(Top 76%)12115(Top 80%)12115(Top 229%)
40K24.85 mi0.85 mi20163+3112266+1812266+1819343(Top 73%)11642(Top 77%)11642(Top 220%)
25.2M25.20 mi0.35 mi20110+5312231+3512231+3516793(Top 63%)10479(Top 69%)10479(Top 198%)
Finish26.22 mi1.02 mi20032+7812197+3412197+3417783(Top 67%)10967(Top 72%)10967(Top 208%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19648

Males

12154

M18-39

12154

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20295

Males

12407

M18-39

12407

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19648

Males

12154

M18-39

12154

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20273

Males

12425

M18-39

12425

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21157

Males

12789

M18-39

12789

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20383

Males

12444

M18-39

12444

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

20007

Males

12214

M18-39

12214

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19963

Males

12113

M18-39

12113

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18700

Males

11519

M18-39

11519

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

20902

Males

12442

M18-39

12442

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19725

Males

11892

M18-39

11892

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

20269

Males

12115

M18-39

12115

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19343

Males

11642

M18-39

11642

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16793

Males

10479

M18-39

10479

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17783

Males

10967

M18-39

10967

Passing Analysis

Category:
Athletes Passed
2056
Passed By
894
Net Change
+1162
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21194
5K → 10K538125+413#21194#20781
10K → 15K41944+375#20781#20406
15K → 20K174159+15#20406#20391
20K → Half1568-53#20391#20444
Half → 25K110100+10#20444#20434
25K → 30K201101+100#20434#20334
30K → 20M9461+33#20334#20301
20M → 21M13729+108#20301#20193
21M → 35K3264-32#20193#20225
35K → 23M8947+42#20225#20183
23M → 24M4758-11#20183#20194
24M → 40K5524+31#20194#20163
40K → 25.2M585+53#20163#20110
25.2M → Finish879+78#20110#20032
TOTALS2056894+1162
📊

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