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BOSTON MARATHON 2024

Dawn Cosio

Bib: 20585•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 45%
Gender (Female)
#0 / 10924
Top 32%
Masters (Masters Women)
#0 / 6263
Top 20%
Division (F45-49)
#0 / 1753
Top 24%
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:01/mi
24:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
49:52
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:14:53
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:40:05
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:45:34
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:06:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:32:21
↑ 181↓ 1480.2%
20M
8:37/mi
2:44:03
↑ 64↓ 500.2%
21M
9:07/mi
2:53:10
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
2:59:29
↑ 17↓ 861.7%
23M
8:42/mi
3:10:23
↑ 23↓ 630.6%
24M
8:29/mi
3:18:52
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:26:25
↓ 200.3%
25.2M
9:40/mi
3:29:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:38:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:34
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:52:44
Pace8:36 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5724:538:0124:53
8:01
-
10K
6.21 mi11:43:5649:528:0224:59
8:02
+0:01
15K
9.32 mi12:08:571:14:538:0225:01
8:03
+0:01
20K
12.43 mi12:34:091:40:058:0325:12
8:07
+0:04
Half
13.11 mi12:39:381:45:348:035:29
8:02
-0:05
25K
15.53 mi13:00:052:06:018:0720:27
8:26
+0:24
30K
18.64 mi13:26:252:32:218:1026:20
8:29
+0:03
20M
20.00 mi13:38:072:44:038:1211:42
8:37
+0:08
21M
21.00 mi13:47:142:53:108:159:07
9:07
+0:30
35K
21.75 mi13:53:332:59:298:156:19
8:27
-0:40
23M
23.00 mi14:04:273:10:238:1710:54
8:42
+0:15
24M
24.00 mi14:12:563:18:528:178:29
8:29
-0:13
40K
24.85 mi14:20:293:26:258:187:33
8:50
+0:21
25.2M
25.20 mi14:23:493:29:458:193:20
9:40
+0:50
Finish
26.22 mi14:32:223:38:188:208:33
8:23
-1:17

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

8:01 /mi

Average Pace

8:20 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:34

48% of race

Time at Steady Pace

1:21:50

37% of race

Time at Slower Pace

30:54

14% of race

Average Pace: 8:20 /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 mi11:18:5724:538:0124:53
8:01
#14715
10K
6.21 mi11:43:5649:528:0224:59
8:02
#14597
15K
9.32 mi12:08:571:14:538:0225:01
8:03
#14291
20K
12.43 mi12:34:091:40:058:0325:12
8:07
#13783
Half
13.11 mi12:39:381:45:348:035:29
8:02
#13721
25K
15.53 mi13:00:052:06:018:0720:27
8:26
#13501
30K
18.64 mi13:26:252:32:218:1026:20
8:29
#12800
20M
20.00 mi13:38:072:44:038:1211:42
8:37
#12544
21M
21.00 mi13:47:142:53:108:159:07
9:07
#12279
35K
21.75 mi13:53:332:59:298:156:19
8:27
#12172
23M
23.00 mi14:04:273:10:238:1710:54
8:42
#11972
24M
24.00 mi14:12:563:18:528:178:29
8:29
#11823
40K
24.85 mi14:20:293:26:258:187:33
8:50
#11694
25.2M
25.20 mi14:23:493:29:458:193:20
9:40
#11646
Finish
26.22 mi14:32:223:38:188:208:33
8:23
#11565
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi147154761476113805(Top 54%)4244(Top 39%)4244(Top 242%)
10K6.21 mi3.10 mi14597+1184688+734688+7314494(Top 57%)4623(Top 42%)4623(Top 264%)
15K9.32 mi3.11 mi14291+3064508+1804508+18013805(Top 54%)4244(Top 39%)4244(Top 242%)
20K12.43 mi3.11 mi13783+5084235+2734235+27312606(Top 49%)3632(Top 33%)3632(Top 207%)
Half13.11 mi0.68 mi13721+624197+384197+3813036(Top 51%)3904(Top 36%)3904(Top 223%)
25K15.53 mi2.42 mi13501+2204093+1044093+10412718(Top 50%)3888(Top 36%)3888(Top 222%)
30K18.64 mi3.11 mi12800+7013788+3053788+30510545(Top 41%)2961(Top 27%)2961(Top 169%)
20M20.00 mi1.36 mi12544+2563712+763712+7610065(Top 39%)2992(Top 27%)2992(Top 171%)
21M21.00 mi1.00 mi12279+2653625+873625+879130(Top 36%)2763(Top 25%)2763(Top 158%)
35K21.75 mi0.75 mi12172+1073605+203605+2010429(Top 41%)3454(Top 32%)3454(Top 197%)
23M23.00 mi1.25 mi11972+2003556+493556+499605(Top 38%)3189(Top 29%)3189(Top 182%)
24M24.00 mi1.00 mi11823+1493518+383518+389393(Top 37%)3140(Top 29%)3140(Top 179%)
40K24.85 mi0.85 mi11694+1293504+143504+1410067(Top 39%)3599(Top 33%)3599(Top 205%)
25.2M25.20 mi0.35 mi11646+483500+43500+49497(Top 37%)3400(Top 31%)3400(Top 194%)
Finish26.22 mi1.02 mi11565+813501-13501-110913(Top 43%)3934(Top 36%)3934(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

13805

Females

4244

F45-49

4244

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

14494

Females

4623

F45-49

4623

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

13805

Females

4244

F45-49

4244

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12606

Females

3632

F45-49

3632

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13036

Females

3904

F45-49

3904

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

12718

Females

3888

F45-49

3888

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10545

Females

2961

F45-49

2961

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10065

Females

2992

F45-49

2992

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9130

Females

2763

F45-49

2763

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

10429

Females

3454

F45-49

3454

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

9605

Females

3189

F45-49

3189

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9393

Females

3140

F45-49

3140

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10067

Females

3599

F45-49

3599

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9497

Females

3400

F45-49

3400

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

10913

Females

3934

F45-49

3934

Passing Analysis

Category:
Athletes Passed
3858
Passed By
708
Net Change
+3150
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14715
5K → 10K340222+118#14715#14597
10K → 15K40599+306#14597#14291
15K → 20K54537+508#14291#13783
20K → Half7513+62#13783#13721
Half → 25K31393+220#13721#13501
25K → 30K72928+701#13501#12800
30K → 20M27317+256#12800#12544
20M → 21M28722+265#12544#12279
21M → 35K13932+107#12279#12172
35K → 23M22828+200#12172#11972
23M → 24M17122+149#11972#11823
24M → 40K16132+129#11823#11694
40K → 25.2M6618+48#11694#11646
25.2M → Finish12645+81#11646#11565
TOTALS3858708+3150
📊

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