Boston Marathon logo
BOSTON MARATHON 2024

Margaret Nolen

Bib: 25236•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

Start
0:00:00
Race begins
5K· 3.11 mi
30:02
Rank: #22191
Start → 5K
30:02 | 9:40/mi
10K· 6.21 mi
1:01:06
Rank: #22400 (-209)
5K → 10K
31:04 | 10:00/mi
15K· 9.32 mi
1:32:46
Rank: #22384 (+16)
10K → 15K
31:40 | 10:12/mi
20K· 12.43 mi
2:12:18
Rank: #23316 (-932)
15K → 20K
39:32 | 12:43/mi
Half· 13.11 mi
2:18:54
Rank: #23196 (+120)
20K → Half
6:36 | 9:40/mi
25K· 15.53 mi
2:40:40
Rank: #22283 (+913)
Half → 25K
21:46 | 8:59/mi
30K· 18.64 mi
3:12:22
Rank: #21535 (+748)
25K → 30K
31:42 | 10:12/mi
20M
3:28:43
Rank: #21541 (-6)
30K → 20M
16:21 | 12:02/mi
21M
3:40:31
Rank: #21365 (+176)
20M → 21M
11:48 | 11:48/mi
35K· 21.75 mi
3:47:27
Rank: #21154 (+211)
21M → 35K
6:56 | 9:16/mi
23M
4:00:19
Rank: #20920 (+234)
35K → 23M
12:52 | 10:17/mi
24M
4:10:38
Rank: #20759 (+161)
23M → 24M
10:19 | 10:19/mi
40K· 24.85 mi
4:19:46
Rank: #20646 (+113)
24M → 40K
9:08 | 10:41/mi
25.2M
4:23:47
Rank: #20573 (+73)
40K → 25.2M
4:01 | 11:39/mi
Finish· 26.22 mi
4:33:21
Rank: #20429 (+144)
25.2M → Finish
9:34 | 9:23/mi

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 Half
Distance13.11 mi
Time2:18:54
Pace10:36 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:14:27
Pace10:15 /mi
📊Negative Split: 3.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1830:029:4030:02
9:40
-
10K
6.21 mi12:22:221:01:069:5031:04
10:00
+0:20
15K
9.32 mi12:54:021:32:469:5731:40
10:12
+0:12
20K
12.43 mi13:33:342:12:1810:3939:32
12:43
+2:31
Half
13.11 mi13:40:102:18:5410:366:36
9:40
-3:03
25K
15.53 mi14:01:562:40:4010:2121:46
8:59
-0:41
30K
18.64 mi14:33:383:12:2210:1931:42
10:12
+1:13
20M
20.00 mi14:49:593:28:4310:2616:21
12:02
+1:50
21M
21.00 mi15:01:473:40:3110:3011:48
11:48
-0:14
35K
21.75 mi15:08:433:47:2710:286:56
9:16
-2:32
23M
23.00 mi15:21:354:00:1910:2712:52
10:17
+1:01
24M
24.00 mi15:31:544:10:3810:2710:19
10:19
+0:02
40K
24.85 mi15:41:024:19:4610:279:08
10:41
+0:22
25.2M
25.20 mi15:45:034:23:4710:284:01
11:39
+0:58
Finish
26.22 mi15:54:374:33:2110:269:34
9:23
-2:16

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

8:59 /mi

Average Pace

10:26 /mi

Slowest Pace

12:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:16

14% of race

Time at Steady Pace

2:43:23

60% of race

Time at Slower Pace

1:11:42

26% of race

Average Pace: 10:26 /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 mi11:51:1830:029:4030:02
9:40
#22191
10K
6.21 mi12:22:221:01:069:5031:04
10:00
#22400
15K
9.32 mi12:54:021:32:469:5731:40
10:12
#22384
20K
12.43 mi13:33:342:12:1810:3939:32
12:43
#23316
Half
13.11 mi13:40:102:18:5410:366:36
9:40
#23196
25K
15.53 mi14:01:562:40:4010:2121:46
8:59
#22283
30K
18.64 mi14:33:383:12:2210:1931:42
10:12
#21535
20M
20.00 mi14:49:593:28:4310:2616:21
12:02
#21541
21M
21.00 mi15:01:473:40:3110:3011:48
11:48
#21365
35K
21.75 mi15:08:433:47:2710:286:56
9:16
#21154
23M
23.00 mi15:21:354:00:1910:2712:52
10:17
#20920
24M
24.00 mi15:31:544:10:3810:2710:19
10:19
#20759
40K
24.85 mi15:41:024:19:4610:279:08
10:41
#20646
25.2M
25.20 mi15:45:034:23:4710:284:01
11:39
#20573
Finish
26.22 mi15:54:374:33:2110:269:34
9:23
#20429
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi221918996899622311(Top 87%)9045(Top 83%)9045(Top 194%)
10K6.21 mi3.10 mi22400-2099110-1149110-11422565(Top 88%)9209(Top 84%)9209(Top 198%)
15K9.32 mi3.11 mi22384+169085+259085+2522311(Top 87%)9045(Top 83%)9045(Top 194%)
20K12.43 mi3.11 mi23316-9329604-5199604-51924660(Top 97%)10395(Top 95%)10395(Top 223%)
Half13.11 mi0.68 mi23196+1209534+709534+7020611(Top 81%)8215(Top 75%)8215(Top 176%)
25K15.53 mi2.42 mi22283+9139065+4699065+46915436(Top 60%)5414(Top 50%)5414(Top 116%)
30K18.64 mi3.11 mi21535+7488727+3388727+33817986(Top 70%)7038(Top 64%)7038(Top 151%)
20M20.00 mi1.36 mi21541-68763-368763-3621427(Top 84%)8972(Top 82%)8972(Top 193%)
21M21.00 mi1.00 mi21365+1768679+848679+8418368(Top 72%)7518(Top 69%)7518(Top 161%)
35K21.75 mi0.75 mi21154+2118587+928587+9214615(Top 57%)5660(Top 52%)5660(Top 121%)
23M23.00 mi1.25 mi20920+2348494+938494+9316381(Top 64%)6591(Top 60%)6591(Top 141%)
24M24.00 mi1.00 mi20759+1618423+718423+7117358(Top 68%)7141(Top 65%)7141(Top 153%)
40K24.85 mi0.85 mi20646+1138378+458378+4517256(Top 68%)7164(Top 66%)7164(Top 154%)
25.2M25.20 mi0.35 mi20573+738350+288350+2816506(Top 65%)6804(Top 62%)6804(Top 146%)
Finish26.22 mi1.02 mi20429+1448288+628288+6216055(Top 63%)6545(Top 60%)6545(Top 140%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

22311

Females

9045

F18-39

9045

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

22565

Females

9209

F18-39

9209

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

22311

Females

9045

F18-39

9045

15K→20K

9.3 - 12.4 mi

Top 97%
×5stories
+106ft-86ft

Overall

24660

Females

10395

F18-39

10395

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

20611

Females

8215

F18-39

8215

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

15436

Females

5414

F18-39

5414

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

17986

Females

7038

F18-39

7038

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

21427

Females

8972

F18-39

8972

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

18368

Females

7518

F18-39

7518

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

14615

Females

5660

F18-39

5660

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

16381

Females

6591

F18-39

6591

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

17358

Females

7141

F18-39

7141

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

17256

Females

7164

F18-39

7164

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

16506

Females

6804

F18-39

6804

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16055

Females

6545

F18-39

6545

Passing Analysis

Category:
Athletes Passed
3322
Passed By
1560
Net Change
+1762
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22191
5K → 10K127336-209#22191#22400
10K → 15K179163+16#22400#22384
15K → 20K16948-932#22384#23316
20K → Half1200+120#23316#23196
Half → 25K9130+913#23196#22283
25K → 30K7513+748#22283#21535
30K → 20M8389-6#21535#21541
20M → 21M1837+176#21541#21365
21M → 35K2132+211#21365#21154
35K → 23M2373+234#21154#20920
23M → 24M1621+161#20920#20759
24M → 40K1185+113#20759#20646
40K → 25.2M763+73#20646#20573
25.2M → Finish1440+144#20573#20429
TOTALS33221560+1762
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing