Boston Marathon logo
BOSTON MARATHON 2024

Natalie Williamson

Bib: 16288•F

OK

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 41%
Gender (Female)
#0 / 10924
Top 27%
Masters (Masters Women)
#0 / 6263
Top 14%
Division (F45-49)
#0 / 1753
Top 17%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:27
Rank: #13646
Start → 5K
24:27 | 7:52/mi
10K· 6.21 mi
49:01
Rank: #13551 (+95)
5K → 10K
24:34 | 7:54/mi
15K· 9.32 mi
1:13:44
Rank: #13385 (+166)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:39:55
Rank: #13697 (-312)
15K → 20K
26:11 | 8:26/mi
Half· 13.11 mi
1:45:12
Rank: #13560 (+137)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:04:45
Rank: #12930 (+630)
Half → 25K
19:33 | 8:04/mi
30K· 18.64 mi
2:30:21
Rank: #12111 (+819)
25K → 30K
25:36 | 8:14/mi
20M
2:41:35
Rank: #11745 (+366)
30K → 20M
11:14 | 8:16/mi
21M
2:50:21
Rank: #11410 (+335)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:56:31
Rank: #11285 (+125)
21M → 35K
6:10 | 8:15/mi
23M
3:07:04
Rank: #11018 (+267)
35K → 23M
10:33 | 8:26/mi
24M
3:15:23
Rank: #10849 (+169)
23M → 24M
8:19 | 8:19/mi
40K· 24.85 mi
3:22:28
Rank: #10660 (+189)
24M → 40K
7:05 | 8:17/mi
25.2M
3:25:39
Rank: #10584 (+76)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:33:46
Rank: #10461 (+123)
25.2M → Finish
8:07 | 7:58/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 HalfFaster
Distance13.11 mi
Time1:45:12
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:48:34
Pace8:17 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4224:277:5224:27
7:52
-
10K
6.21 mi11:39:1649:017:5324:34
7:54
+0:02
15K
9.32 mi12:03:591:13:447:5524:43
7:57
+0:03
20K
12.43 mi12:30:101:39:558:0226:11
8:26
+0:29
Half
13.11 mi12:35:271:45:128:015:17
7:45
-0:41
25K
15.53 mi12:55:002:04:458:0219:33
8:04
+0:19
30K
18.64 mi13:20:362:30:218:0425:36
8:14
+0:10
20M
20.00 mi13:31:502:41:358:0511:14
8:16
+0:02
21M
21.00 mi13:40:362:50:218:078:46
8:46
+0:30
35K
21.75 mi13:46:462:56:318:076:10
8:15
-0:31
23M
23.00 mi13:57:193:07:048:0810:33
8:26
+0:11
24M
24.00 mi14:05:383:15:238:088:19
8:19
-0:07
40K
24.85 mi14:12:433:22:288:097:05
8:17
-0:02
25.2M
25.20 mi14:15:543:25:398:103:11
9:14
+0:57
Finish
26.22 mi14:24:013:33:468:108:07
7:58
-1:16

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

7:45 /mi

Average Pace

8:10 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:49

94% of race

Time at Steady Pace

8:46

4% of race

Time at Slower Pace

3:11

1% of race

Average Pace: 8:09 /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 mi11:14:4224:277:5224:27
7:52
#13646
10K
6.21 mi11:39:1649:017:5324:34
7:54
#13551
15K
9.32 mi12:03:591:13:447:5524:43
7:57
#13385
20K
12.43 mi12:30:101:39:558:0226:11
8:26
#13697
Half
13.11 mi12:35:271:45:128:015:17
7:45
#13560
25K
15.53 mi12:55:002:04:458:0219:33
8:04
#12930
30K
18.64 mi13:20:362:30:218:0425:36
8:14
#12111
20M
20.00 mi13:31:502:41:358:0511:14
8:16
#11745
21M
21.00 mi13:40:362:50:218:078:46
8:46
#11410
35K
21.75 mi13:46:462:56:318:076:10
8:15
#11285
23M
23.00 mi13:57:193:07:048:0810:33
8:26
#11018
24M
24.00 mi14:05:383:15:238:088:19
8:19
#10849
40K
24.85 mi14:12:433:22:288:097:05
8:17
#10660
25.2M
25.20 mi14:15:543:25:398:103:11
9:14
#10584
Finish
26.22 mi14:24:013:33:468:108:07
7:58
#10461
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi136464083408313129(Top 51%)3876(Top 35%)3876(Top 221%)
10K6.21 mi3.10 mi13551+954062+214062+2113500(Top 53%)4044(Top 37%)4044(Top 231%)
15K9.32 mi3.11 mi13385+1663971+913971+9113129(Top 51%)3876(Top 35%)3876(Top 221%)
20K12.43 mi3.11 mi13697-3124180-2094180-20914413(Top 56%)4673(Top 43%)4673(Top 267%)
Half13.11 mi0.68 mi13560+1374099+814099+8110972(Top 43%)2792(Top 26%)2792(Top 159%)
25K15.53 mi2.42 mi12930+6303769+3303769+33010614(Top 42%)2784(Top 25%)2784(Top 159%)
30K18.64 mi3.11 mi12111+8193413+3563413+3569245(Top 36%)2340(Top 21%)2340(Top 133%)
20M20.00 mi1.36 mi11745+3663261+1523261+1528219(Top 32%)2103(Top 19%)2103(Top 120%)
21M21.00 mi1.00 mi11410+3353148+1133148+1137506(Top 29%)1951(Top 18%)1951(Top 111%)
35K21.75 mi0.75 mi11285+1253115+333115+339253(Top 36%)2839(Top 26%)2839(Top 162%)
23M23.00 mi1.25 mi11018+2673041+743041+748081(Top 32%)2425(Top 22%)2425(Top 138%)
24M24.00 mi1.00 mi10849+1692994+472994+478404(Top 33%)2664(Top 24%)2664(Top 152%)
40K24.85 mi0.85 mi10660+1892961+332961+337285(Top 29%)2283(Top 21%)2283(Top 130%)
25.2M25.20 mi0.35 mi10584+762943+182943+187679(Top 30%)2518(Top 23%)2518(Top 144%)
Finish26.22 mi1.02 mi10461+1232912+312912+318345(Top 33%)2748(Top 25%)2748(Top 157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

13129

Females

3876

F45-49

3876

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

13500

Females

4044

F45-49

4044

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

13129

Females

3876

F45-49

3876

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

14413

Females

4673

F45-49

4673

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

10972

Females

2792

F45-49

2792

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

10614

Females

2784

F45-49

2784

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9245

Females

2340

F45-49

2340

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8219

Females

2103

F45-49

2103

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7506

Females

1951

F45-49

1951

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

9253

Females

2839

F45-49

2839

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

8081

Females

2425

F45-49

2425

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8404

Females

2664

F45-49

2664

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7285

Females

2283

F45-49

2283

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

7679

Females

2518

F45-49

2518

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8345

Females

2748

F45-49

2748

Passing Analysis

Category:
Athletes Passed
4207*
Passed By
1022
Net Change
+3185
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13646
5K → 10K354259+95#13646#13551
10K → 15K305139+166#13551#13385
15K → 20K170482-312#13385#13697
20K → Half1381+137#13697#13560
Half → 25K64414+630#13560#12930
25K → 30K82910+819#12930#12111
30K → 20M37711+366#12111#11745
20M → 21M3416+335#11745#11410
21M → 35K14116+125#11410#11285
35K → 23M29023+267#11285#11018
23M → 24M19021+169#11018#10849
24M → 40K200*11+189#10849#10660
40K → 25.2M815+76#10660#10584
25.2M → Finish14724+123#10584#10461
TOTALS4207*1022+3185

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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