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BOSTON MARATHON 2023

Christina Bower

Bib: 15374•F

NS

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 30%
Division (F18-39)
#0 / 4884
Top 48%
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
7:25/mi
23:01
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
46:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:10:26
↑ 67↓ 78
20K· 12.43 mi
8:01/mi
1:35:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:46/mi
1:40:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:00:44
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:27:07
↑ 181↓ 1480.2%
20M
8:17/mi
2:38:22
↑ 64↓ 500.2%
21M
9:25/mi
2:47:47
↑ 106↓ 241.6%
35K· 21.75 mi
7:53/mi
2:53:41
↑ 17↓ 861.7%
23M
8:50/mi
3:04:44
↑ 23↓ 630.6%
24M
8:03/mi
3:12:47
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:19:48
↓ 200.3%
25.2M
8:54/mi
3:22:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:31:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:39
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:50:27
Pace8:26 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4323:017:2523:01
7:25
-
10K
6.21 mi11:19:1346:317:2923:30
7:34
+0:09
15K
9.32 mi11:43:081:10:267:3323:55
7:42
+0:08
20K
12.43 mi12:08:031:35:217:4024:55
8:01
+0:19
Half
13.11 mi12:13:211:40:397:415:18
7:46
-0:15
25K
15.53 mi12:33:262:00:447:4620:05
8:17
+0:31
30K
18.64 mi12:59:492:27:077:5426:23
8:30
+0:13
20M
20.00 mi13:11:042:38:227:5511:15
8:17
-0:13
21M
21.00 mi13:20:292:47:477:599:25
9:25
+1:08
35K
21.75 mi13:26:232:53:417:595:54
7:53
-1:32
23M
23.00 mi13:37:263:04:448:0211:03
8:50
+0:57
24M
24.00 mi13:45:293:12:478:028:03
8:03
-0:47
40K
24.85 mi13:52:303:19:488:027:01
8:12
+0:09
25.2M
25.20 mi13:55:343:22:528:033:04
8:54
+0:42
Finish
26.22 mi14:03:483:31:068:038:14
8:05
-0:49

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

8:03 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:44

36% of race

Time at Steady Pace

1:25:27

40% of race

Time at Slower Pace

49:55

24% of race

Average Pace: 8:03 /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 mi10:55:4323:017:2523:01
7:25
#8899
10K
6.21 mi11:19:1346:317:2923:30
7:34
#9902
15K
9.32 mi11:43:081:10:267:3323:55
7:42
#10569
20K
12.43 mi12:08:031:35:217:4024:55
8:01
#11286
Half
13.11 mi12:13:211:40:397:415:18
7:46
#11352
25K
15.53 mi12:33:262:00:447:4620:05
8:17
#11932
30K
18.64 mi12:59:492:27:077:5426:23
8:30
#12408
20M
20.00 mi13:11:042:38:227:5511:15
8:17
#12368
21M
21.00 mi13:20:292:47:477:599:25
9:25
#12580
35K
21.75 mi13:26:232:53:417:595:54
7:53
#12516
23M
23.00 mi13:37:263:04:448:0211:03
8:50
#12699
24M
24.00 mi13:45:293:12:478:028:03
8:03
#12635
40K
24.85 mi13:52:303:19:488:027:01
8:12
#12584
25.2M
25.20 mi13:55:343:22:528:033:04
8:54
#12569
Finish
26.22 mi14:03:483:31:068:038:14
8:05
#12566
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi88991362136211845(Top 44%)2818(Top 25%)2818(Top 58%)
10K6.21 mi3.10 mi9902-10031799-4371799-43711018(Top 41%)2322(Top 20%)2322(Top 48%)
15K9.32 mi3.11 mi10569-6672105-3062105-30611845(Top 44%)2818(Top 25%)2818(Top 58%)
20K12.43 mi3.11 mi11286-7172492-3872492-38713611(Top 51%)3881(Top 34%)3881(Top 79%)
Half13.11 mi0.68 mi11352-662536-442536-4412518(Top 47%)3221(Top 28%)3221(Top 66%)
25K15.53 mi2.42 mi11932-5802898-3622898-36214838(Top 56%)4720(Top 41%)4720(Top 97%)
30K18.64 mi3.11 mi12408-4763204-3063204-30614264(Top 54%)4488(Top 39%)4488(Top 92%)
20M20.00 mi1.36 mi12368+403199+53199+512232(Top 46%)3414(Top 30%)3414(Top 70%)
21M21.00 mi1.00 mi12580-2123344-1453344-14515560(Top 58%)5374(Top 47%)5374(Top 110%)
35K21.75 mi0.75 mi12516+643322+223322+2211349(Top 43%)3056(Top 27%)3056(Top 63%)
23M23.00 mi1.25 mi12699-1833449-1273449-12715129(Top 57%)5246(Top 46%)5246(Top 107%)
24M24.00 mi1.00 mi12635+643435+143435+1411612(Top 44%)3390(Top 30%)3390(Top 69%)
40K24.85 mi0.85 mi12584+513421+143421+1411431(Top 43%)3379(Top 30%)3379(Top 69%)
25.2M25.20 mi0.35 mi12569+153419+23419+211965(Top 45%)3703(Top 32%)3703(Top 76%)
Finish26.22 mi1.02 mi12566+33446-273446-2712669(Top 48%)4045(Top 35%)4045(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11845

Females

2818

F18-39

2818

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11018

Females

2322

F18-39

2322

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11845

Females

2818

F18-39

2818

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

13611

Females

3881

F18-39

3881

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

12518

Females

3221

F18-39

3221

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14838

Females

4720

F18-39

4720

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14264

Females

4488

F18-39

4488

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12232

Females

3414

F18-39

3414

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15560

Females

5374

F18-39

5374

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11349

Females

3056

F18-39

3056

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15129

Females

5246

F18-39

5246

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11612

Females

3390

F18-39

3390

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11431

Females

3379

F18-39

3379

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11965

Females

3703

F18-39

3703

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12669

Females

4045

F18-39

4045

Passing Analysis

Category:
Athletes Passed
833
Passed By
4498
Net Change
-3667
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8899
5K → 10K531056-1003#8899#9902
10K → 15K43708-667#9902#10569
15K → 20K27744-717#10569#11286
20K → Half1278-66#11286#11352
Half → 25K28608-580#11352#11932
25K → 30K89565-476#11932#12408
30K → 20M11171+40#12408#12368
20M → 21M43255-212#12368#12580
21M → 35K8420+64#12580#12516
35K → 23M45228-183#12516#12699
23M → 24M10339+64#12699#12635
24M → 40K8130+51#12635#12584
40K → 25.2M3722+15#12584#12569
25.2M → Finish7774+3#12569#12566
TOTALS8334498-3667
📊

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