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BOSTON MARATHON 2023

Fritz Gantzer

Bib: 18417•M

SC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 48%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 40%
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
7:51/mi
24:22
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
48:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:45/mi
1:12:23
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:36:50
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:42:10
↑ 19↓ 370.5%
25K· 15.53 mi
8:00/mi
2:01:33
↑ 66↓ 880.2%
30K· 18.64 mi
8:16/mi
2:27:13
↑ 181↓ 1480.2%
20M
8:23/mi
2:38:37
↑ 64↓ 500.2%
21M
9:08/mi
2:47:45
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:53:46
↑ 17↓ 861.7%
23M
8:39/mi
3:04:36
↑ 23↓ 630.6%
24M
8:20/mi
3:12:56
↓ 821.3%
40K· 24.85 mi
8:35/mi
3:20:16
↓ 200.3%
25.2M
9:25/mi
3:23:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:31:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:10
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:49:31
Pace8:21 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2824:227:5124:22
7:51
-
10K
6.21 mi11:39:2348:177:4623:55
7:42
-0:09
15K
9.32 mi12:03:291:12:237:4624:06
7:45
+0:03
20K
12.43 mi12:27:561:36:507:4824:27
7:52
+0:07
Half
13.11 mi12:33:161:42:107:485:20
7:49
-0:03
25K
15.53 mi12:52:392:01:337:4919:23
8:00
+0:11
30K
18.64 mi13:18:192:27:137:5425:40
8:16
+0:16
20M
20.00 mi13:29:432:38:377:5611:24
8:23
+0:07
21M
21.00 mi13:38:512:47:457:599:08
9:08
+0:45
35K
21.75 mi13:44:522:53:467:596:01
8:03
-1:05
23M
23.00 mi13:55:423:04:368:0210:50
8:39
+0:36
24M
24.00 mi14:04:023:12:568:028:20
8:20
-0:19
40K
24.85 mi14:11:223:20:168:037:20
8:35
+0:15
25.2M
25.20 mi14:14:373:23:318:053:15
9:25
+0:50
Finish
26.22 mi14:22:473:31:418:058:10
8:01
-1:24

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

7:42 /mi

Average Pace

8:05 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

48:01

23% of race

Time at Steady Pace

1:53:23

54% of race

Time at Slower Pace

50:17

24% of race

Average Pace: 8:04 /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 mi11:15:2824:227:5124:22
7:51
#12769
10K
6.21 mi11:39:2348:177:4623:55
7:42
#12440
15K
9.32 mi12:03:291:12:237:4624:06
7:45
#12363
20K
12.43 mi12:27:561:36:507:4824:27
7:52
#12326
Half
13.11 mi12:33:161:42:107:485:20
7:49
#12345
25K
15.53 mi12:52:392:01:337:4919:23
8:00
#12393
30K
18.64 mi13:18:192:27:137:5425:40
8:16
#12435
20M
20.00 mi13:29:432:38:377:5611:24
8:23
#12467
21M
21.00 mi13:38:512:47:457:599:08
9:08
#12558
35K
21.75 mi13:44:522:53:467:596:01
8:03
#12545
23M
23.00 mi13:55:423:04:368:0210:50
8:39
#12634
24M
24.00 mi14:04:023:12:568:028:20
8:20
#12677
40K
24.85 mi14:11:223:20:168:037:20
8:35
#12716
25.2M
25.20 mi14:14:373:23:318:053:15
9:25
#12755
Finish
26.22 mi14:22:473:31:418:058:10
8:01
#12733
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi127699441944112353(Top 46%)9227(Top 61%)9227(Top 649%)
10K6.21 mi3.10 mi12440+3299297+1449297+14412206(Top 46%)9199(Top 61%)9199(Top 647%)
15K9.32 mi3.11 mi12363+779243+549243+5412353(Top 46%)9227(Top 61%)9227(Top 649%)
20K12.43 mi3.11 mi12326+379207+369207+3612324(Top 46%)9160(Top 60%)9160(Top 644%)
Half13.11 mi0.68 mi12345-199213-69213-612819(Top 48%)9412(Top 62%)9412(Top 662%)
25K15.53 mi2.42 mi12393-489211+29211+212681(Top 48%)9202(Top 61%)9202(Top 647%)
30K18.64 mi3.11 mi12435-429202+99202+912758(Top 48%)9131(Top 60%)9131(Top 642%)
20M20.00 mi1.36 mi12467-329199+39199+312923(Top 49%)9091(Top 60%)9091(Top 639%)
21M21.00 mi1.00 mi12558-919212-139212-1314107(Top 53%)9547(Top 63%)9547(Top 671%)
35K21.75 mi0.75 mi12545+139191+219191+2112401(Top 47%)8735(Top 58%)8735(Top 614%)
23M23.00 mi1.25 mi12634-899208-179208-1714066(Top 53%)9388(Top 62%)9388(Top 660%)
24M24.00 mi1.00 mi12677-439200+89200+813410(Top 50%)9052(Top 60%)9052(Top 637%)
40K24.85 mi0.85 mi12716-399198+29198+213792(Top 52%)9145(Top 60%)9145(Top 643%)
25.2M25.20 mi0.35 mi12755-399206-89206-814749(Top 55%)9553(Top 63%)9553(Top 672%)
Finish26.22 mi1.02 mi12733+229175+319175+3112210(Top 46%)8385(Top 55%)8385(Top 590%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12353

Males

9227

M55-59

9227

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12206

Males

9199

M55-59

9199

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12353

Males

9227

M55-59

9227

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12324

Males

9160

M55-59

9160

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12819

Males

9412

M55-59

9412

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12681

Males

9202

M55-59

9202

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12758

Males

9131

M55-59

9131

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

12923

Males

9091

M55-59

9091

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14107

Males

9547

M55-59

9547

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12401

Males

8735

M55-59

8735

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14066

Males

9388

M55-59

9388

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13410

Males

9052

M55-59

9052

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13792

Males

9145

M55-59

9145

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14749

Males

9553

M55-59

9553

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12210

Males

8385

M55-59

8385

Passing Analysis

Category:
Athletes Passed
1719
Passed By
1683
Net Change
+36
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12769
5K → 10K505176+329#12769#12440
10K → 15K228151+77#12440#12363
15K → 20K194157+37#12363#12326
20K → Half2039-19#12326#12345
Half → 25K112160-48#12345#12393
25K → 30K192234-42#12393#12435
30K → 20M86118-32#12435#12467
20M → 21M69160-91#12467#12558
21M → 35K5845+13#12558#12545
35K → 23M60149-89#12545#12634
23M → 24M58101-43#12634#12677
24M → 40K4786-39#12677#12716
40K → 25.2M2059-39#12716#12755
25.2M → Finish7048+22#12755#12733
TOTALS17191683+36
📊

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