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BOSTON MARATHON 2023

Katie Heidke

Bib: 17928•F

WI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 27%
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
7:45/mi
24:05
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:50
↑ 79↓ 1380.4%
15K· 9.32 mi
7:40/mi
1:11:40
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:35:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:40:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:59:02
↑ 66↓ 880.2%
30K· 18.64 mi
7:41/mi
2:22:55
↑ 181↓ 1480.2%
20M
7:43/mi
2:33:24
↑ 64↓ 500.2%
21M
8:07/mi
2:41:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:47:06
↑ 17↓ 861.7%
23M
7:34/mi
2:56:34
↑ 23↓ 630.6%
24M
7:08/mi
3:03:42
↓ 821.3%
40K· 24.85 mi
7:17/mi
3:09:56
↓ 200.3%
25.2M
7:38/mi
3:12:34
↑ 13↓ 160.2%
Finish· 26.22 mi
7:01/mi
3:19:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:40:31
Pace7:40 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:12
Pace7:34 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3824:057:4524:05
7:45
-
10K
6.21 mi11:38:2347:507:4223:45
7:39
-0:06
15K
9.32 mi12:02:131:11:407:4123:50
7:40
+0:01
20K
12.43 mi12:25:551:35:227:4023:42
7:38
-0:02
Half
13.11 mi12:31:041:40:317:405:09
7:33
-0:05
25K
15.53 mi12:49:351:59:027:4018:31
7:38
+0:05
30K
18.64 mi13:13:282:22:557:4023:53
7:41
+0:03
20M
20.00 mi13:23:572:33:247:4010:29
7:43
+0:02
21M
21.00 mi13:32:042:41:317:418:07
8:07
+0:24
35K
21.75 mi13:37:392:47:067:415:35
7:28
-0:39
23M
23.00 mi13:47:072:56:347:419:28
7:34
+0:06
24M
24.00 mi13:54:153:03:427:397:08
7:08
-0:26
40K
24.85 mi14:00:293:09:567:396:14
7:17
+0:09
25.2M
25.20 mi14:03:073:12:347:382:38
7:38
+0:21
Finish
26.22 mi14:10:163:19:437:377:09
7:01
-0:37

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

7:01 /mi

Average Pace

7:37 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:31

84% of race

Time at Steady Pace

32:12

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi11:14:3824:057:4524:05
7:45
#11936
10K
6.21 mi11:38:2347:507:4223:45
7:39
#11790
15K
9.32 mi12:02:131:11:407:4123:50
7:40
#11689
20K
12.43 mi12:25:551:35:227:4023:42
7:38
#11294
Half
13.11 mi12:31:041:40:317:405:09
7:33
#11251
25K
15.53 mi12:49:351:59:027:4018:31
7:38
#11005
30K
18.64 mi13:13:282:22:557:4023:53
7:41
#10493
20M
20.00 mi13:23:572:33:247:4010:29
7:43
#10320
21M
21.00 mi13:32:042:41:317:418:07
8:07
#10148
35K
21.75 mi13:37:392:47:067:415:35
7:28
#10055
23M
23.00 mi13:47:072:56:347:419:28
7:34
#9822
24M
24.00 mi13:54:153:03:427:397:08
7:08
#9580
40K
24.85 mi14:00:293:09:567:396:14
7:17
#9383
25.2M
25.20 mi14:03:073:12:347:382:38
7:38
#9287
Finish
26.22 mi14:10:163:19:437:377:09
7:01
#9113
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi119362829282911597(Top 44%)2676(Top 23%)2676(Top 55%)
10K6.21 mi3.10 mi11790+1462756+732756+7311740(Top 44%)2716(Top 24%)2716(Top 56%)
15K9.32 mi3.11 mi11689+1012718+382718+3811597(Top 44%)2676(Top 23%)2676(Top 55%)
20K12.43 mi3.11 mi11294+3952497+2212497+22110310(Top 39%)2052(Top 18%)2052(Top 42%)
Half13.11 mi0.68 mi11251+432470+272470+2710638(Top 40%)2176(Top 19%)2176(Top 45%)
25K15.53 mi2.42 mi11005+2462358+1122358+1129829(Top 37%)1926(Top 17%)1926(Top 39%)
30K18.64 mi3.11 mi10493+5122150+2082150+2088562(Top 32%)1537(Top 13%)1537(Top 31%)
20M20.00 mi1.36 mi10320+1732079+712079+718319(Top 31%)1523(Top 13%)1523(Top 31%)
21M21.00 mi1.00 mi10148+1722016+632016+638143(Top 31%)1581(Top 14%)1581(Top 32%)
35K21.75 mi0.75 mi10055+931994+221994+228316(Top 31%)1618(Top 14%)1618(Top 33%)
23M23.00 mi1.25 mi9822+2331916+781916+786837(Top 26%)1120(Top 10%)1120(Top 23%)
24M24.00 mi1.00 mi9580+2421833+831833+835423(Top 20%)703(Top 6%)703(Top 14%)
40K24.85 mi0.85 mi9383+1971780+531780+535448(Top 20%)803(Top 7%)803(Top 16%)
25.2M25.20 mi0.35 mi9287+961751+291751+294661(Top 18%)633(Top 6%)633(Top 13%)
Finish26.22 mi1.02 mi9113+1741695+561695+565354(Top 20%)853(Top 7%)853(Top 17%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11597

Females

2676

F18-39

2676

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11740

Females

2716

F18-39

2716

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11597

Females

2676

F18-39

2676

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10310

Females

2052

F18-39

2052

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10638

Females

2176

F18-39

2176

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9829

Females

1926

F18-39

1926

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8562

Females

1537

F18-39

1537

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8319

Females

1523

F18-39

1523

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8143

Females

1581

F18-39

1581

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8316

Females

1618

F18-39

1618

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6837

Females

1120

F18-39

1120

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5423

Females

703

F18-39

703

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5448

Females

803

F18-39

803

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4661

Females

633

F18-39

633

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5354

Females

853

F18-39

853

Passing Analysis

Category:
Athletes Passed
3298*
Passed By
475
Net Change
+2823
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11936
5K → 10K383237+146#11936#11790
10K → 15K234133+101#11790#11689
15K → 20K41520+395#11689#11294
20K → Half529+43#11294#11251
Half → 25K26721+246#11251#11005
25K → 30K52311+512#11005#10493
30K → 20M183*10+173#10493#10320
20M → 21M18816+172#10320#10148
21M → 35K1018+93#10148#10055
35K → 23M237*4+233#10055#9822
23M → 24M2420+242#9822#9580
24M → 40K197*0+197#9580#9383
40K → 25.2M971+96#9383#9287
25.2M → Finish1795+174#9287#9113
TOTALS3298*475+2823

* 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