Boston Marathon logo
BOSTON MARATHON 2024

Ruth Birkhölzer

Bib: 21568•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
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
8:21/mi
25:55
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
52:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:19:50
↑ 67↓ 78
20K· 12.43 mi
9:47/mi
1:50:14
↑ 106↓ 860.1%
Half· 13.11 mi
10:33/mi
1:57:26
↑ 19↓ 370.5%
25K· 15.53 mi
11:02/mi
2:24:12
↑ 66↓ 880.2%
30K· 18.64 mi
10:09/mi
2:55:43
↑ 181↓ 1480.2%
20M
9:35/mi
3:08:44
↑ 64↓ 500.2%
21M
10:19/mi
3:19:03
↑ 106↓ 241.6%
35K· 21.75 mi
9:29/mi
3:26:09
↑ 17↓ 861.7%
23M
9:10/mi
3:37:38
↑ 23↓ 630.6%
24M
9:03/mi
3:46:41
↓ 821.3%
40K· 24.85 mi
9:17/mi
3:54:37
↓ 200.3%
25.2M
10:00/mi
3:58:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:38/mi
4:06:52
↑ 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
Time1:57:26
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:09:26
Pace9:52 /mi
📊Positive Split: 10.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2425:558:2125:55
8:21
-
10K
6.21 mi11:49:5652:278:2626:32
8:32
+0:11
15K
9.32 mi12:17:191:19:508:3427:23
8:49
+0:17
20K
12.43 mi12:47:431:50:148:5230:24
9:47
+0:58
Half
13.11 mi12:54:551:57:268:577:12
10:33
+0:46
25K
15.53 mi13:21:412:24:129:1726:46
11:02
+0:29
30K
18.64 mi13:53:122:55:439:2631:31
10:09
-0:53
20M
20.00 mi14:06:133:08:449:2613:01
9:35
-0:34
21M
21.00 mi14:16:323:19:039:2910:19
10:19
+0:44
35K
21.75 mi14:23:383:26:099:297:06
9:29
-0:50
23M
23.00 mi14:35:073:37:389:2811:29
9:10
-0:19
24M
24.00 mi14:44:103:46:419:279:03
9:03
-0:07
40K
24.85 mi14:52:063:54:379:267:56
9:17
+0:14
25.2M
25.20 mi14:55:333:58:049:273:27
10:00
+0:43
Finish
26.22 mi15:04:214:06:529:258:48
8:38
-1:22

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

8:21 /mi

Average Pace

9:25 /mi

Slowest Pace

11:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:41

40% of race

Time at Steady Pace

1:09:56

28% of race

Time at Slower Pace

1:19:15

32% of race

Average Pace: 9:25 /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 mi11:23:2425:558:2125:55
8:21
#16901
10K
6.21 mi11:49:5652:278:2626:32
8:32
#17168
15K
9.32 mi12:17:191:19:508:3427:23
8:49
#17488
20K
12.43 mi12:47:431:50:148:5230:24
9:47
#18350
Half
13.11 mi12:54:551:57:268:577:12
10:33
#18744
25K
15.53 mi13:21:412:24:129:1726:46
11:02
#19470
30K
18.64 mi13:53:122:55:439:2631:31
10:09
#19114
20M
20.00 mi14:06:133:08:449:2613:01
9:35
#18791
21M
21.00 mi14:16:323:19:039:2910:19
10:19
#18514
35K
21.75 mi14:23:383:26:099:297:06
9:29
#18373
23M
23.00 mi14:35:073:37:389:2811:29
9:10
#18015
24M
24.00 mi14:44:103:46:419:279:03
9:03
#17779
40K
24.85 mi14:52:063:54:379:267:56
9:17
#17595
25.2M
25.20 mi14:55:333:58:049:273:27
10:00
#17475
Finish
26.22 mi15:04:214:06:529:258:48
8:38
#17272
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi169016106610618038(Top 71%)6735(Top 62%)6735(Top 384%)
10K6.21 mi3.10 mi17168-2676248-1426248-14217520(Top 69%)6442(Top 59%)6442(Top 367%)
15K9.32 mi3.11 mi17488-3206423-1756423-17518038(Top 71%)6735(Top 62%)6735(Top 384%)
20K12.43 mi3.11 mi18350-8626932-5096932-50920011(Top 78%)7812(Top 72%)7812(Top 446%)
Half13.11 mi0.68 mi18744-3947150-2187150-21822751(Top 89%)9353(Top 86%)9353(Top 534%)
25K15.53 mi2.42 mi19470-7267556-4067556-40621577(Top 84%)8774(Top 80%)8774(Top 501%)
30K18.64 mi3.11 mi19114+3567432+1247432+12417795(Top 70%)6931(Top 63%)6931(Top 395%)
20M20.00 mi1.36 mi18791+3237279+1537279+15314879(Top 58%)5613(Top 51%)5613(Top 320%)
21M21.00 mi1.00 mi18514+2777158+1217158+12114211(Top 56%)5429(Top 50%)5429(Top 310%)
35K21.75 mi0.75 mi18373+1417099+597099+5915482(Top 61%)6091(Top 56%)6091(Top 347%)
23M23.00 mi1.25 mi18015+3586941+1586941+15812039(Top 47%)4432(Top 41%)4432(Top 253%)
24M24.00 mi1.00 mi17779+2366837+1046837+10412462(Top 49%)4661(Top 43%)4661(Top 266%)
40K24.85 mi0.85 mi17595+1846761+766761+7612194(Top 48%)4638(Top 42%)4638(Top 265%)
25.2M25.20 mi0.35 mi17475+1206711+506711+5011047(Top 43%)4145(Top 38%)4145(Top 236%)
Finish26.22 mi1.02 mi17272+2036625+866625+8612311(Top 48%)4629(Top 42%)4629(Top 264%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18038

Females

6735

F45-49

6735

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

17520

Females

6442

F45-49

6442

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18038

Females

6735

F45-49

6735

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20011

Females

7812

F45-49

7812

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

22751

Females

9353

F45-49

9353

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

21577

Females

8774

F45-49

8774

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

17795

Females

6931

F45-49

6931

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

14879

Females

5613

F45-49

5613

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14211

Females

5429

F45-49

5429

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

15482

Females

6091

F45-49

6091

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12039

Females

4432

F45-49

4432

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12462

Females

4661

F45-49

4661

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12194

Females

4638

F45-49

4638

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11047

Females

4145

F45-49

4145

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12311

Females

4629

F45-49

4629

Passing Analysis

Category:
Athletes Passed
2714
Passed By
3085
Net Change
-371
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16901
5K → 10K177444-267#16901#17168
10K → 15K146466-320#17168#17488
15K → 20K67929-862#17488#18350
20K → Half7401-394#18350#18744
Half → 25K42768-726#18744#19470
25K → 30K41660+356#19470#19114
30K → 20M3263+323#19114#18791
20M → 21M2814+277#18791#18514
21M → 35K1454+141#18514#18373
35K → 23M3591+358#18373#18015
23M → 24M2360+236#18015#17779
24M → 40K1851+184#17779#17595
40K → 25.2M1222+120#17595#17475
25.2M → Finish2052+203#17475#17272
TOTALS27143085-371
📊

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