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BOSTON MARATHON 2023

Xandria Fraser

Bib: 18011•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 34%
Division (F18-39)
#0 / 4884
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
7:40/mi
23:49
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
46:53
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:10:05
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:34:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:39:11
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
1:57:55
↑ 66↓ 880.2%
30K· 18.64 mi
8:16/mi
2:23:37
↑ 181↓ 1480.2%
20M
9:09/mi
2:36:03
↑ 64↓ 500.2%
21M
9:53/mi
2:45:56
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
2:52:29
↑ 17↓ 861.7%
23M
9:57/mi
3:04:57
↑ 23↓ 630.6%
24M
9:05/mi
3:14:02
↓ 821.3%
40K· 24.85 mi
9:38/mi
3:22:16
↓ 200.3%
25.2M
9:28/mi
3:25:32
↑ 13↓ 160.2%
Finish· 26.22 mi
8:28/mi
3:34:10
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:11
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:54:59
Pace8:46 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5423:497:4023:49
7:40
-
10K
6.21 mi11:42:5846:537:3323:04
7:25
-0:15
15K
9.32 mi12:06:101:10:057:3123:12
7:28
+0:03
20K
12.43 mi12:30:101:34:057:3424:00
7:43
+0:15
Half
13.11 mi12:35:161:39:117:345:06
7:29
-0:14
25K
15.53 mi12:54:001:57:557:3518:44
7:44
+0:15
30K
18.64 mi13:19:422:23:377:4225:42
8:16
+0:32
20M
20.00 mi13:32:082:36:037:4812:26
9:09
+0:53
21M
21.00 mi13:42:012:45:567:549:53
9:53
+0:44
35K
21.75 mi13:48:342:52:297:566:33
8:45
-1:08
23M
23.00 mi14:01:023:04:578:0212:28
9:57
+1:12
24M
24.00 mi14:10:073:14:028:059:05
9:05
-0:52
40K
24.85 mi14:18:213:22:168:088:14
9:38
+0:33
25.2M
25.20 mi14:21:373:25:328:093:16
9:28
-0:10
Finish
26.22 mi14:30:153:34:108:108:38
8:28
-1:00

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

7:25 /mi

Average Pace

8:10 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:55

55% of race

Time at Steady Pace

40:53

19% of race

Time at Slower Pace

55:22

26% of race

Average Pace: 8:10 /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 mi11:19:5423:497:4023:49
7:40
#11180
10K
6.21 mi11:42:5846:537:3323:04
7:25
#10437
15K
9.32 mi12:06:101:10:057:3123:12
7:28
#10239
20K
12.43 mi12:30:101:34:057:3424:00
7:43
#10448
Half
13.11 mi12:35:161:39:117:345:06
7:29
#10422
25K
15.53 mi12:54:001:57:557:3518:44
7:44
#10419
30K
18.64 mi13:19:422:23:377:4225:42
8:16
#10820
20M
20.00 mi13:32:082:36:037:4812:26
9:09
#11383
21M
21.00 mi13:42:012:45:567:549:53
9:53
#11878
35K
21.75 mi13:48:342:52:297:566:33
8:45
#12088
23M
23.00 mi14:01:023:04:578:0212:28
9:57
#12777
24M
24.00 mi14:10:073:14:028:059:05
9:05
#13015
40K
24.85 mi14:18:213:22:168:088:14
9:38
#13288
25.2M
25.20 mi14:21:373:25:328:093:16
9:28
#13304
Finish
26.22 mi14:30:153:34:108:108:38
8:28
#13392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi11180242724279933(Top 37%)1813(Top 16%)1813(Top 37%)
10K6.21 mi3.10 mi10437+7432046+3812046+3819868(Top 37%)1760(Top 15%)1760(Top 36%)
15K9.32 mi3.11 mi10239+1981933+1131933+1139933(Top 37%)1813(Top 16%)1813(Top 37%)
20K12.43 mi3.11 mi10448-2092044-1112044-11111125(Top 42%)2474(Top 22%)2474(Top 51%)
Half13.11 mi0.68 mi10422+262041+32041+310132(Top 38%)1968(Top 17%)1968(Top 40%)
25K15.53 mi2.42 mi10419+32056-152056-1510532(Top 40%)2255(Top 20%)2255(Top 46%)
30K18.64 mi3.11 mi10820-4012306-2502306-25012858(Top 48%)3672(Top 32%)3672(Top 75%)
20M20.00 mi1.36 mi11383-5632646-3402646-34017310(Top 65%)6337(Top 55%)6337(Top 130%)
21M21.00 mi1.00 mi11878-4952943-2972943-29717584(Top 66%)6507(Top 57%)6507(Top 133%)
35K21.75 mi0.75 mi12088-2103081-1383081-13816709(Top 63%)6097(Top 53%)6097(Top 125%)
23M23.00 mi1.25 mi12777-6893496-4153496-41519863(Top 75%)7879(Top 69%)7879(Top 161%)
24M24.00 mi1.00 mi13015-2383659-1633659-16317591(Top 66%)6675(Top 58%)6675(Top 137%)
40K24.85 mi0.85 mi13288-2733832-1733832-17318804(Top 71%)7377(Top 65%)7377(Top 151%)
25.2M25.20 mi0.35 mi13304-163857-253857-2515076(Top 57%)5330(Top 47%)5330(Top 109%)
Finish26.22 mi1.02 mi13392-883930-733930-7315241(Top 57%)5384(Top 47%)5384(Top 110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9933

Females

1813

F18-39

1813

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9868

Females

1760

F18-39

1760

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9933

Females

1813

F18-39

1813

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11125

Females

2474

F18-39

2474

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10132

Females

1968

F18-39

1968

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10532

Females

2255

F18-39

2255

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12858

Females

3672

F18-39

3672

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17310

Females

6337

F18-39

6337

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

17584

Females

6507

F18-39

6507

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16709

Females

6097

F18-39

6097

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19863

Females

7879

F18-39

7879

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17591

Females

6675

F18-39

6675

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18804

Females

7377

F18-39

7377

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15076

Females

5330

F18-39

5330

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

15241

Females

5384

F18-39

5384

Passing Analysis

Category:
Athletes Passed
1623*
Passed By
3835
Net Change
-2212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11180
5K → 10K803*60+743#11180#10437
10K → 15K305107+198#10437#10239
15K → 20K92301-209#10239#10448
20K → Half4519+26#10448#10422
Half → 25K143140+3#10422#10419
25K → 30K75476-401#10419#10820
30K → 20M18581-563#10820#11383
20M → 21M13508-495#11383#11878
21M → 35K17227-210#11878#12088
35K → 23M6695-689#12088#12777
23M → 24M22260-238#12777#13015
24M → 40K16289-273#13015#13288
40K → 25.2M3349-16#13288#13304
25.2M → Finish35123-88#13304#13392
TOTALS1623*3835-2212

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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