Boston Marathon logo
BOSTON MARATHON 2024

Tarryn Loftus

Bib: 21227•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
8:08/mi
25:17
↑ 97↓ 3451.5%
10K· 6.21 mi
8:08/mi
50:33
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:16:00
↑ 67↓ 78
20K· 12.43 mi
8:51/mi
1:43:31
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:49:41
↑ 19↓ 370.5%
25K· 15.53 mi
9:32/mi
2:12:49
↑ 66↓ 880.2%
30K· 18.64 mi
10:09/mi
2:44:21
↑ 181↓ 1480.2%
20M
10:02/mi
2:57:59
↑ 64↓ 500.2%
21M
12:33/mi
3:10:32
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:18:30
↑ 17↓ 861.7%
23M
10:51/mi
3:32:05
↑ 23↓ 630.6%
24M
9:54/mi
3:41:59
↓ 821.3%
40K· 24.85 mi
11:13/mi
3:51:34
↓ 200.3%
25.2M
11:50/mi
3:55:39
↑ 13↓ 160.2%
Finish· 26.22 mi
10:24/mi
4:06:15
↑ 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
Time1:49:41
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:16:34
Pace10:25 /mi
📊Positive Split: 24.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2225:178:0825:17
8:08
-
10K
6.21 mi11:46:3850:338:0825:16
8:08
0:00
15K
9.32 mi12:12:051:16:008:0925:27
8:11
+0:03
20K
12.43 mi12:39:361:43:318:2027:31
8:51
+0:40
Half
13.11 mi12:45:461:49:418:226:10
9:02
+0:11
25K
15.53 mi13:08:542:12:498:3323:08
9:32
+0:30
30K
18.64 mi13:40:262:44:218:4931:32
10:09
+0:37
20M
20.00 mi13:54:042:57:598:5413:38
10:02
-0:07
21M
21.00 mi14:06:373:10:329:0412:33
12:33
+2:31
35K
21.75 mi14:14:353:18:309:087:58
10:39
-1:54
23M
23.00 mi14:28:103:32:059:1313:35
10:51
+0:12
24M
24.00 mi14:38:043:41:599:159:54
9:54
-0:57
40K
24.85 mi14:47:393:51:349:199:35
11:13
+1:19
25.2M
25.20 mi14:51:443:55:399:214:05
11:50
+0:37
Finish
26.22 mi15:02:204:06:159:2410:36
10:24
-1:26

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

8:08 /mi

Average Pace

9:24 /mi

Slowest Pace

12:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:41

45% of race

Time at Steady Pace

1:36:46

39% of race

Time at Slower Pace

39:48

16% of race

Average Pace: 9:24 /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 mi11:21:2225:178:0825:17
8:08
#15646
10K
6.21 mi11:46:3850:338:0825:16
8:08
#15369
15K
9.32 mi12:12:051:16:008:0925:27
8:11
#15066
20K
12.43 mi12:39:361:43:318:2027:31
8:51
#15449
Half
13.11 mi12:45:461:49:418:226:10
9:02
#15621
25K
15.53 mi13:08:542:12:498:3323:08
9:32
#16037
30K
18.64 mi13:40:262:44:218:4931:32
10:09
#16481
20M
20.00 mi13:54:042:57:598:5413:38
10:02
#16501
21M
21.00 mi14:06:373:10:329:0412:33
12:33
#16881
35K
21.75 mi14:14:353:18:309:087:58
10:39
#16981
23M
23.00 mi14:28:103:32:059:1313:35
10:51
#17106
24M
24.00 mi14:38:043:41:599:159:54
9:54
#17060
40K
24.85 mi14:47:393:51:349:199:35
11:13
#17130
25.2M
25.20 mi14:51:443:55:399:214:05
11:50
#17119
Finish
26.22 mi15:02:204:06:159:2410:36
10:24
#17179
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi156465354535414696(Top 58%)4786(Top 44%)4786(Top 273%)
10K6.21 mi3.10 mi15369+2775168+1865168+18615129(Top 59%)5010(Top 46%)5010(Top 286%)
15K9.32 mi3.11 mi15066+3034989+1794989+17914696(Top 58%)4786(Top 44%)4786(Top 273%)
20K12.43 mi3.11 mi15449-3835240-2515240-25116691(Top 65%)6001(Top 55%)6001(Top 342%)
Half13.11 mi0.68 mi15621-1725348-1085348-10818461(Top 72%)7030(Top 64%)7030(Top 401%)
25K15.53 mi2.42 mi16037-4165637-2895637-28917703(Top 69%)6660(Top 61%)6660(Top 380%)
30K18.64 mi3.11 mi16481-4445959-3225959-32217812(Top 70%)6941(Top 64%)6941(Top 396%)
20M20.00 mi1.36 mi16501-206009-506009-5016609(Top 65%)6517(Top 60%)6517(Top 372%)
21M21.00 mi1.00 mi16881-3806261-2526261-25219963(Top 78%)8301(Top 76%)8301(Top 474%)
35K21.75 mi0.75 mi16981-1006336-756336-7518958(Top 74%)7806(Top 71%)7806(Top 445%)
23M23.00 mi1.25 mi17106-1256430-946430-9417993(Top 70%)7407(Top 68%)7407(Top 423%)
24M24.00 mi1.00 mi17060+466429+16429+115985(Top 63%)6436(Top 59%)6436(Top 367%)
40K24.85 mi0.85 mi17130-706500-716500-7118628(Top 73%)7815(Top 72%)7815(Top 446%)
25.2M25.20 mi0.35 mi17119+116511-116511-1116976(Top 66%)7028(Top 64%)7028(Top 401%)
Finish26.22 mi1.02 mi17179-606582-716582-7119732(Top 77%)8340(Top 76%)8340(Top 476%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

14696

Females

4786

F45-49

4786

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15129

Females

5010

F45-49

5010

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

14696

Females

4786

F45-49

4786

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

16691

Females

6001

F45-49

6001

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

18461

Females

7030

F45-49

7030

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

17703

Females

6660

F45-49

6660

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

17812

Females

6941

F45-49

6941

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

16609

Females

6517

F45-49

6517

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

19963

Females

8301

F45-49

8301

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

18958

Females

7806

F45-49

7806

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

17993

Females

7407

F45-49

7407

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

15985

Females

6436

F45-49

6436

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

18628

Females

7815

F45-49

7815

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

16976

Females

7028

F45-49

7028

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

19732

Females

8340

F45-49

8340

Passing Analysis

Category:
Athletes Passed
1725
Passed By
3258
Net Change
-1533
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15646
5K → 10K436159+277#15646#15369
10K → 15K39895+303#15369#15066
15K → 20K130513-383#15066#15449
20K → Half5177-172#15449#15621
Half → 25K121537-416#15621#16037
25K → 30K112556-444#16037#16481
30K → 20M116136-20#16481#16501
20M → 21M26406-380#16501#16881
21M → 35K46146-100#16881#16981
35K → 23M66191-125#16981#17106
23M → 24M10054+46#17106#17060
24M → 40K68138-70#17060#17130
40K → 25.2M4130+11#17130#17119
25.2M → Finish60120-60#17119#17179
TOTALS17253258-1533
📊

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