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BOSTON MARATHON 2023

Carolina Costa

MA

Bib: 17379 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 44%
Gender (Female)
#0 / 11423
Top 26%
Division (F18-39)
#0 / 4884
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:40/mi
23:50
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:47/mi
48:00
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:55/mi
1:12:35
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:06/mi
1:37:44
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:49/mi
1:43:04
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:55/mi
2:02:16
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:06/mi
2:27:26
↑ 181↓ 1480.2%
138 ft elev
20M
8:03/mi
2:38:23
↑ 64↓ 500.2%
148 ft elev
21M
8:46/mi
2:47:09
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:45/mi
2:52:57
↑ 17↓ 861.7%
156 ft elev
23M
8:01/mi
3:02:59
↑ 23↓ 630.6%
116 ft elev
24M
7:52/mi
3:10:51
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:51/mi
3:17:34
↓ 200.3%
20 ft elev
25.2M
8:22/mi
3:20:27
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:39/mi
3:28:15
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:04
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:45:11
Pace8:01 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1523:507:4023:50
7:40
-
10K
6.21 mi11:38:2548:007:4324:10
7:47
+0:07
15K
9.32 mi12:03:001:12:357:4724:35
7:55
+0:08
20K
12.43 mi12:28:091:37:447:5225:09
8:06
+0:11
Half
13.11 mi12:33:291:43:047:525:20
7:49
-0:17
25K
15.53 mi12:52:412:02:167:5219:12
7:55
+0:06
30K
18.64 mi13:17:512:27:267:5525:10
8:06
+0:11
20M
20.00 mi13:28:482:38:237:5510:57
8:03
-0:03
21M
21.00 mi13:37:342:47:097:588:46
8:46
+0:43
35K
21.75 mi13:43:222:52:577:575:48
7:45
-1:01
23M
23.00 mi13:53:243:02:597:5710:02
8:01
+0:16
24M
24.00 mi14:01:163:10:517:577:52
7:52
-0:09
40K
24.85 mi14:07:593:17:347:576:43
7:51
-0:01
25.2M
25.20 mi14:10:523:20:277:572:53
8:22
+0:31
Finish
26.22 mi14:18:403:28:157:577:48
7:39
-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

7:39 /mi

Average Pace

7:57 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:29

96% of race

Time at Steady Pace

8:46

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:57 /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 mi11:14:1523:507:4023:50
7:40
#11211
10K
6.21 mi11:38:2548:007:4324:10
7:47
#12060
15K
9.32 mi12:03:001:12:357:4724:35
7:55
#12558
20K
12.43 mi12:28:091:37:447:5225:09
8:06
#12987
Half
13.11 mi12:33:291:43:047:525:20
7:49
#12973
25K
15.53 mi12:52:412:02:167:5219:12
7:55
#12796
30K
18.64 mi13:17:512:27:267:5525:10
8:06
#12544
20M
20.00 mi13:28:482:38:237:5510:57
8:03
#12373
21M
21.00 mi13:37:342:47:097:588:46
8:46
#12328
35K
21.75 mi13:43:222:52:577:575:48
7:45
#12250
23M
23.00 mi13:53:243:02:597:5710:02
8:01
#12092
24M
24.00 mi14:01:163:10:517:577:52
7:52
#12004
40K
24.85 mi14:07:593:17:347:576:43
7:51
#11872
25.2M
25.20 mi14:10:523:20:277:572:53
8:22
#11820
Finish
26.22 mi14:18:403:28:157:577:48
7:39
#11699
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112112442244213677(Top 51%)3883(Top 34%)3883(Top 80%)
10K6.21 mi3.10 mi12060-8492893-4512893-45112956(Top 49%)3402(Top 30%)3402(Top 70%)
15K9.32 mi3.11 mi12558-4983209-3163209-31613677(Top 51%)3883(Top 34%)3883(Top 80%)
20K12.43 mi3.11 mi12987-4293477-2683477-26814192(Top 53%)4214(Top 37%)4214(Top 86%)
Half13.11 mi0.68 mi12973+143467+103467+1012889(Top 48%)3418(Top 30%)3418(Top 70%)
25K15.53 mi2.42 mi12796+1773393+743393+7412063(Top 45%)3113(Top 27%)3113(Top 64%)
30K18.64 mi3.11 mi12544+2523282+1113282+11111645(Top 44%)2988(Top 26%)2988(Top 61%)
20M20.00 mi1.36 mi12373+1713201+813201+8110743(Top 40%)2611(Top 23%)2611(Top 53%)
21M21.00 mi1.00 mi12328+453189+123189+1212077(Top 45%)3439(Top 30%)3439(Top 70%)
35K21.75 mi0.75 mi12250+783166+233166+2310357(Top 39%)2546(Top 22%)2546(Top 52%)
23M23.00 mi1.25 mi12092+1583108+583108+589864(Top 37%)2448(Top 21%)2448(Top 50%)
24M24.00 mi1.00 mi12004+883081+273081+2710305(Top 39%)2737(Top 24%)2737(Top 56%)
40K24.85 mi0.85 mi11872+1323021+603021+609092(Top 34%)2224(Top 19%)2224(Top 46%)
25.2M25.20 mi0.35 mi11820+522999+222999+228761(Top 33%)2164(Top 19%)2164(Top 44%)
Finish26.22 mi1.02 mi11699+1212958+412958+419694(Top 36%)2573(Top 23%)2573(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13677

Females

3883

F18-39

3883

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

12956

Females

3402

F18-39

3402

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13677

Females

3883

F18-39

3883

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14192

Females

4214

F18-39

4214

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12889

Females

3418

F18-39

3418

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12063

Females

3113

F18-39

3113

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11645

Females

2988

F18-39

2988

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10743

Females

2611

F18-39

2611

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12077

Females

3439

F18-39

3439

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10357

Females

2546

F18-39

2546

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9864

Females

2448

F18-39

2448

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10305

Females

2737

F18-39

2737

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9092

Females

2224

F18-39

2224

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8761

Females

2164

F18-39

2164

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9694

Females

2573

F18-39

2573

Passing Analysis

Category:
Athletes Passed
1847
Passed By
2335
Net Change
-488
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11211
5K → 10K72921-849#11211#12060
10K → 15K68566-498#12060#12558
15K → 20K79508-429#12558#12987
20K → Half3622+14#12987#12973
Half → 25K22952+177#12973#12796
25K → 30K32674+252#12796#12544
30K → 20M19322+171#12544#12373
20M → 21M11267+45#12373#12328
21M → 35K868+78#12328#12250
35K → 23M18325+158#12250#12092
23M → 24M11931+88#12092#12004
24M → 40K1408+132#12004#11872
40K → 25.2M619+52#11872#11820
25.2M → Finish14322+121#11820#11699
TOTALS18472335-488
📊

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