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BOSTON MARATHON 2023

Josephine Wirtz

Bib: 10280•F

GA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:55
Rank: #8651
Start → 5K
22:55 | 7:23/mi
10K· 6.21 mi
45:14
Rank: #8315 (+336)
5K → 10K
22:19 | 7:11/mi
15K· 9.32 mi
1:07:17
Rank: #7894 (+421)
10K → 15K
22:03 | 7:06/mi
20K· 12.43 mi
1:29:01
Rank: #7295 (+599)
15K → 20K
21:44 | 7:00/mi
Half· 13.11 mi
1:33:44
Rank: #7236 (+59)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:50:16
Rank: #6759 (+477)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:11:11
Rank: #6044 (+715)
25K → 30K
20:55 | 6:44/mi
20M
2:20:14
Rank: #5711 (+333)
30K → 20M
9:03 | 6:40/mi
21M
2:27:04
Rank: #5440 (+271)
20M → 21M
6:50 | 6:50/mi
35K· 21.75 mi
2:31:52
Rank: #5282 (+158)
21M → 35K
4:48 | 6:25/mi
23M
2:40:05
Rank: #4982 (+300)
35K → 23M
8:13 | 6:34/mi
24M
2:46:22
Rank: #4755 (+227)
23M → 24M
6:17 | 6:17/mi
40K· 24.85 mi
2:51:45
Rank: #4533 (+222)
24M → 40K
5:23 | 6:18/mi
25.2M
2:54:02
Rank: #4443 (+90)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
3:00:03
Rank: #4207 (+236)
25.2M → Finish
6:01 | 5:54/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:33:44
Pace7:09 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:26:19
Pace6:35 /mi
📊Negative Split: 7.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0722:557:2322:55
7:23
-
10K
6.21 mi11:11:2645:147:1722:19
7:11
-0:12
15K
9.32 mi11:33:291:07:177:1322:03
7:06
-0:05
20K
12.43 mi11:55:131:29:017:1021:44
7:00
-0:06
Half
13.11 mi11:59:561:33:447:094:43
6:55
-0:05
25K
15.53 mi12:16:281:50:167:0616:32
6:49
-0:06
30K
18.64 mi12:37:232:11:117:0220:55
6:44
-0:05
20M
20.00 mi12:46:262:20:147:019:03
6:40
-0:04
21M
21.00 mi12:53:162:27:047:006:50
6:50
+0:10
35K
21.75 mi12:58:042:31:526:594:48
6:25
-0:25
23M
23.00 mi13:06:172:40:056:588:13
6:34
+0:09
24M
24.00 mi13:12:342:46:226:566:17
6:17
-0:17
40K
24.85 mi13:17:572:51:456:555:23
6:18
+0:01
25.2M
25.20 mi13:20:142:54:026:542:17
6:37
+0:19
Finish
26.22 mi13:26:153:00:036:526:01
5:54
-0:43

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

6:52 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:29

12% of race

Time at Steady Pace

1:08:33

38% of race

Time at Slower Pace

1:29:01

49% of race

Average Pace: 6:52 /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 mi10:49:0722:557:2322:55
7:23
#8651
10K
6.21 mi11:11:2645:147:1722:19
7:11
#8315
15K
9.32 mi11:33:291:07:177:1322:03
7:06
#7894
20K
12.43 mi11:55:131:29:017:1021:44
7:00
#7295
Half
13.11 mi11:59:561:33:447:094:43
6:55
#7236
25K
15.53 mi12:16:281:50:167:0616:32
6:49
#6759
30K
18.64 mi12:37:232:11:117:0220:55
6:44
#6044
20M
20.00 mi12:46:262:20:147:019:03
6:40
#5711
21M
21.00 mi12:53:162:27:047:006:50
6:50
#5440
35K
21.75 mi12:58:042:31:526:594:48
6:25
#5282
23M
23.00 mi13:06:172:40:056:588:13
6:34
#4982
24M
24.00 mi13:12:342:46:226:566:17
6:17
#4755
40K
24.85 mi13:17:572:51:456:555:23
6:18
#4533
25.2M
25.20 mi13:20:142:54:026:542:17
6:37
#4443
Finish
26.22 mi13:26:153:00:036:526:01
5:54
#4207
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8651125012507147(Top 27%)785(Top 7%)785(Top 16%)
10K6.21 mi3.10 mi8315+3361150+1001150+1007984(Top 30%)1043(Top 9%)1043(Top 21%)
15K9.32 mi3.11 mi7894+421996+154996+1547147(Top 27%)785(Top 7%)785(Top 16%)
20K12.43 mi3.11 mi7295+599822+174822+1745963(Top 22%)509(Top 4%)509(Top 10%)
Half13.11 mi0.68 mi7236+59807+15807+156107(Top 23%)524(Top 5%)524(Top 11%)
25K15.53 mi2.42 mi6759+477699+108699+1084341(Top 16%)285(Top 2%)285(Top 6%)
30K18.64 mi3.11 mi6044+715539+160539+1602589(Top 10%)127(Top 1%)127(Top 3%)
20M20.00 mi1.36 mi5711+333474+65474+652133(Top 8%)103(Top 0.9%)103(Top 2%)
21M21.00 mi1.00 mi5440+271436+38436+381547(Top 6%)74(Top 0.6%)74(Top 2%)
35K21.75 mi0.75 mi5282+158418+18418+182076(Top 8%)106(Top 0.9%)106(Top 2%)
23M23.00 mi1.25 mi4982+300379+39379+391672(Top 6%)84(Top 0.7%)84(Top 2%)
24M24.00 mi1.00 mi4755+227336+43336+431324(Top 5%)71(Top 0.6%)71(Top 1%)
40K24.85 mi0.85 mi4533+222309+27309+27914(Top 3%)51(Top 0.4%)51(Top 1%)
25.2M25.20 mi0.35 mi4443+90298+11298+11761(Top 3%)39(Top 0.3%)39(Top 0.8%)
Finish26.22 mi1.02 mi4207+236274+24274+24554(Top 2%)29(Top 0.3%)29(Top 0.6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7147

Females

785

F18-39

785

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7984

Females

1043

F18-39

1043

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7147

Females

785

F18-39

785

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5963

Females

509

F18-39

509

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6107

Females

524

F18-39

524

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4341

Females

285

F18-39

285

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2589

Females

127

F18-39

127

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2133

Females

103

F18-39

103

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1547

Females

74

F18-39

74

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2076

Females

106

F18-39

106

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1672

Females

84

F18-39

84

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1324

Females

71

F18-39

71

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

914

Females

51

F18-39

51

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

761

Females

39

F18-39

39

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

554

Females

29

F18-39

29

Passing Analysis

Category:
Athletes Passed
4575
Passed By
131
Net Change
+4444
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8651
5K → 10K448112+336#8651#8315
10K → 15K43615+421#8315#7894
15K → 20K6001+599#7894#7295
20K → Half612+59#7295#7236
Half → 25K4770+477#7236#6759
25K → 30K7150+715#6759#6044
30K → 20M3330+333#6044#5711
20M → 21M2710+271#5711#5440
21M → 35K1580+158#5440#5282
35K → 23M3000+300#5282#4982
23M → 24M2281+227#4982#4755
24M → 40K2220+222#4755#4533
40K → 25.2M900+90#4533#4443
25.2M → Finish2360+236#4443#4207
TOTALS4575131+4444
📊

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