Boston Marathon logo
BOSTON MARATHON 2024

Alexandra Burtnick

Bib: 24126•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
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
8:45/mi
27:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
54:18
↑ 79↓ 1380.4%
15K· 9.32 mi
10:31/mi
1:26:59
↑ 67↓ 78
20K· 12.43 mi
11:22/mi
2:02:17
↑ 106↓ 860.1%
Half· 13.11 mi
9:32/mi
2:08:47
↑ 19↓ 370.5%
25K· 15.53 mi
11:29/mi
2:36:38
↑ 66↓ 880.2%
30K· 18.64 mi
13:39/mi
3:19:04
↑ 181↓ 1480.2%
20M
14:08/mi
3:38:16
↑ 64↓ 500.2%
21M
17:03/mi
3:55:19
↑ 106↓ 241.6%
35K· 21.75 mi
20:31/mi
4:10:40
↑ 17↓ 861.7%
23M
13:18/mi
4:27:19
↑ 23↓ 630.6%
24M
15:54/mi
4:43:13
↓ 821.3%
40K· 24.85 mi
14:27/mi
4:55:34
↓ 200.3%
25.2M
14:44/mi
5:00:39
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
5:10:00
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:47
Pace9:49 /mi
2nd Half
Distance13.11 mi
Time3:01:13
Pace13:49 /mi
📊Positive Split: 40.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:2827:118:4527:11
8:45
-
10K
6.21 mi12:09:3554:188:4427:07
8:44
-0:01
15K
9.32 mi12:42:161:26:599:2032:41
10:31
+1:47
20K
12.43 mi13:17:342:02:179:5035:18
11:22
+0:51
Half
13.11 mi13:24:042:08:479:496:30
9:32
-1:50
25K
15.53 mi13:51:552:36:3810:0527:51
11:29
+1:57
30K
18.64 mi14:34:213:19:0410:4142:26
13:39
+2:10
20M
20.00 mi14:53:333:38:1610:5519:12
14:08
+0:29
21M
21.00 mi15:10:363:55:1911:1217:03
17:03
+2:55
35K
21.75 mi15:25:574:10:4011:3215:21
20:31
+3:28
23M
23.00 mi15:42:364:27:1911:3716:39
13:18
-7:13
24M
24.00 mi15:58:304:43:1311:4815:54
15:54
+2:36
40K
24.85 mi16:10:514:55:3411:5412:21
14:27
-1:27
25.2M
25.20 mi16:15:565:00:3911:565:05
14:44
+0:17
Finish
26.22 mi16:25:175:10:0011:509:21
9:11
-5:33

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

8:44 /mi

Average Pace

11:50 /mi

Slowest Pace

20:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:59

54% of race

Time at Steady Pace

1:35:43

31% of race

Time at Slower Pace

48:18

16% of race

Average Pace: 11:49 /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 mi11:42:2827:118:4527:11
8:45
#19070
10K
6.21 mi12:09:3554:188:4427:07
8:44
#18809
15K
9.32 mi12:42:161:26:599:2032:41
10:31
#20745
20K
12.43 mi13:17:342:02:179:5035:18
11:22
#21588
Half
13.11 mi13:24:042:08:479:496:30
9:32
#21503
25K
15.53 mi13:51:552:36:3810:0527:51
11:29
#21686
30K
18.64 mi14:34:213:19:0410:4142:26
13:39
#22353
20M
20.00 mi14:53:333:38:1610:5519:12
14:08
#22572
21M
21.00 mi15:10:363:55:1911:1217:03
17:03
#22853
35K
21.75 mi15:25:574:10:4011:3215:21
20:31
#23260
23M
23.00 mi15:42:364:27:1911:3716:39
13:18
#23255
24M
24.00 mi15:58:304:43:1311:4815:54
15:54
#23450
40K
24.85 mi16:10:514:55:3411:5412:21
14:27
#23500
25.2M
25.20 mi16:15:565:00:3911:565:05
14:44
#23492
Finish
26.22 mi16:25:175:10:0011:509:21
9:11
#23339
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi190707400740022974(Top 90%)9417(Top 86%)9417(Top 202%)
10K6.21 mi3.10 mi18809+2617224+1767224+17618525(Top 73%)7038(Top 64%)7038(Top 151%)
15K9.32 mi3.11 mi20745-19368221-9978221-99722974(Top 90%)9417(Top 86%)9417(Top 202%)
20K12.43 mi3.11 mi21588-8438685-4648685-46423213(Top 91%)9567(Top 88%)9567(Top 205%)
Half13.11 mi0.68 mi21503+858637+488637+4820192(Top 79%)7994(Top 73%)7994(Top 172%)
25K15.53 mi2.42 mi21686-1838750-1138750-11322392(Top 88%)9212(Top 84%)9212(Top 198%)
30K18.64 mi3.11 mi22353-6679149-3999149-39923943(Top 94%)10134(Top 93%)10134(Top 217%)
20M20.00 mi1.36 mi22572-2199285-1369285-13624075(Top 94%)10264(Top 94%)10264(Top 220%)
21M21.00 mi1.00 mi22853-2819463-1789463-17825062(Top 98%)10750(Top 98%)10750(Top 231%)
35K21.75 mi0.75 mi23260-4079674-2119674-21125486(Top 100%)10905(Top 100%)10905(Top 234%)
23M23.00 mi1.25 mi23255+59684-109684-1022980(Top 90%)9828(Top 90%)9828(Top 211%)
24M24.00 mi1.00 mi23450-1959800-1169800-11625112(Top 98%)10806(Top 99%)10806(Top 232%)
40K24.85 mi0.85 mi23500-509836-369836-3624091(Top 94%)10416(Top 95%)10416(Top 224%)
25.2M25.20 mi0.35 mi23492+89839-39839-322723(Top 89%)9813(Top 90%)9813(Top 211%)
Finish26.22 mi1.02 mi23339+1539767+729767+7215079(Top 59%)6031(Top 55%)6031(Top 129%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

22974

Females

9417

F18-39

9417

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

18525

Females

7038

F18-39

7038

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

22974

Females

9417

F18-39

9417

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

23213

Females

9567

F18-39

9567

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

20192

Females

7994

F18-39

7994

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

22392

Females

9212

F18-39

9212

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

23943

Females

10134

F18-39

10134

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

24075

Females

10264

F18-39

10264

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

25062

Females

10750

F18-39

10750

21M→35K

21.0 - 21.8 mi

Top 100%
×7story building
+17ft-86ft

Overall

25486

Females

10905

F18-39

10905

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

22980

Females

9828

F18-39

9828

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

25112

Females

10806

F18-39

10806

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24091

Females

10416

F18-39

10416

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

22723

Females

9813

F18-39

9813

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15079

Females

6031

F18-39

6031

Passing Analysis

Category:
Athletes Passed
974
Passed By
5243
Net Change
-4269
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19070
5K → 10K417156+261#19070#18809
10K → 15K161952-1936#18809#20745
15K → 20K26869-843#20745#21588
20K → Half861+85#21588#21503
Half → 25K92275-183#21503#21686
25K → 30K34701-667#21686#22353
30K → 20M26245-219#22353#22572
20M → 21M15296-281#22572#22853
21M → 35K4411-407#22853#23260
35K → 23M5348+5#23260#23255
23M → 24M9204-195#23255#23450
24M → 40K2272-50#23450#23500
40K → 25.2M2113+8#23500#23492
25.2M → Finish1530+153#23492#23339
TOTALS9745243-4269
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing