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BOSTON MARATHON 2024

Grainne Grennan

Bib: 19365•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F65-69)
#0 / 216
Top 18%
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
8:11/mi
25:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:25/mi
51:33
↑ 79↓ 1380.4%
15K· 9.32 mi
8:46/mi
1:18:48
↑ 67↓ 78
20K· 12.43 mi
9:22/mi
1:47:55
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
1:54:17
↑ 19↓ 370.5%
25K· 15.53 mi
10:10/mi
2:18:55
↑ 66↓ 880.2%
30K· 18.64 mi
11:14/mi
2:53:50
↑ 181↓ 1480.2%
20M
11:24/mi
3:09:19
↑ 64↓ 500.2%
21M
12:39/mi
3:21:58
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:29:56
↑ 17↓ 861.7%
23M
11:36/mi
3:44:27
↑ 23↓ 630.6%
24M
11:22/mi
3:55:49
↓ 821.3%
40K· 24.85 mi
11:46/mi
4:05:53
↓ 200.3%
25.2M
14:07/mi
4:10:45
↑ 13↓ 160.2%
Finish· 26.22 mi
11:25/mi
4:22:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:17
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:28:06
Pace11:18 /mi
📊Positive Split: 29.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1925:248:1125:24
8:11
-
10K
6.21 mi11:44:2851:338:1826:09
8:25
+0:14
15K
9.32 mi12:11:431:18:488:2727:15
8:46
+0:21
20K
12.43 mi12:40:501:47:558:4129:07
9:22
+0:36
Half
13.11 mi12:47:121:54:178:436:22
9:20
-0:02
25K
15.53 mi13:11:502:18:558:5724:38
10:10
+0:50
30K
18.64 mi13:46:452:53:509:2034:55
11:14
+1:04
20M
20.00 mi14:02:143:09:199:2815:29
11:24
+0:10
21M
21.00 mi14:14:533:21:589:3712:39
12:39
+1:15
35K
21.75 mi14:22:513:29:569:397:58
10:39
-2:00
23M
23.00 mi14:37:223:44:279:4614:31
11:36
+0:57
24M
24.00 mi14:48:443:55:499:5011:22
11:22
-0:14
40K
24.85 mi14:58:484:05:539:5410:04
11:46
+0:24
25.2M
25.20 mi15:03:404:10:459:574:52
14:07
+2:21
Finish
26.22 mi15:15:184:22:2310:0111:38
11:25
-2:42

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

8:11 /mi

Average Pace

10:01 /mi

Slowest Pace

14:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:55

53% of race

Time at Steady Pace

1:45:57

40% of race

Time at Slower Pace

17:31

7% of race

Average Pace: 10:00 /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 mi11:18:1925:248:1125:24
8:11
#15892
10K
6.21 mi11:44:2851:338:1826:09
8:25
#16327
15K
9.32 mi12:11:431:18:488:2727:15
8:46
#16828
20K
12.43 mi12:40:501:47:558:4129:07
9:22
#17420
Half
13.11 mi12:47:121:54:178:436:22
9:20
#17558
25K
15.53 mi13:11:502:18:558:5724:38
10:10
#18033
30K
18.64 mi13:46:452:53:509:2034:55
11:14
#18747
20M
20.00 mi14:02:143:09:199:2815:29
11:24
#18896
21M
21.00 mi14:14:533:21:589:3712:39
12:39
#18983
35K
21.75 mi14:22:513:29:569:397:58
10:39
#18969
23M
23.00 mi14:37:223:44:279:4614:31
11:36
#19007
24M
24.00 mi14:48:443:55:499:5011:22
11:22
#19049
40K
24.85 mi14:58:484:05:539:5410:04
11:46
#19077
25.2M
25.20 mi15:03:404:10:459:574:52
14:07
#19135
Finish
26.22 mi15:15:184:22:2310:0111:38
11:25
#19239
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi158925504550417850(Top 70%)6630(Top 61%)6630(Top 3069%)
10K6.21 mi3.10 mi16327-4355760-2565760-25616799(Top 66%)6011(Top 55%)6011(Top 2783%)
15K9.32 mi3.11 mi16828-5016043-2836043-28317850(Top 70%)6630(Top 61%)6630(Top 3069%)
20K12.43 mi3.11 mi17420-5926419-3766419-37618798(Top 74%)7169(Top 66%)7169(Top 3319%)
Half13.11 mi0.68 mi17558-1386503-846503-8419551(Top 77%)7632(Top 70%)7632(Top 3533%)
25K15.53 mi2.42 mi18033-4756788-2856788-28519543(Top 76%)7667(Top 70%)7667(Top 3550%)
30K18.64 mi3.11 mi18747-7147238-4507238-45020511(Top 80%)8372(Top 77%)8372(Top 3876%)
20M20.00 mi1.36 mi18896-1497345-1077345-10720173(Top 79%)8319(Top 76%)8319(Top 3851%)
21M21.00 mi1.00 mi18983-877421-767421-7620138(Top 79%)8403(Top 77%)8403(Top 3890%)
35K21.75 mi0.75 mi18969+147427-67427-618969(Top 74%)7817(Top 72%)7817(Top 3619%)
23M23.00 mi1.25 mi19007-387464-377464-3719852(Top 78%)8324(Top 76%)8324(Top 3854%)
24M24.00 mi1.00 mi19049-427506-427506-4220142(Top 79%)8506(Top 78%)8506(Top 3938%)
40K24.85 mi0.85 mi19077-287539-337539-3319981(Top 78%)8505(Top 78%)8505(Top 3938%)
25.2M25.20 mi0.35 mi19135-587576-377576-3721773(Top 85%)9356(Top 86%)9356(Top 4331%)
Finish26.22 mi1.02 mi19239-1047649-737649-7322266(Top 87%)9572(Top 88%)9572(Top 4431%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

17850

Females

6630

F65-69

6630

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

16799

Females

6011

F65-69

6011

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

17850

Females

6630

F65-69

6630

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

18798

Females

7169

F65-69

7169

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

19551

Females

7632

F65-69

7632

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

19543

Females

7667

F65-69

7667

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

20511

Females

8372

F65-69

8372

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

20173

Females

8319

F65-69

8319

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20138

Females

8403

F65-69

8403

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

18969

Females

7817

F65-69

7817

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

19852

Females

8324

F65-69

8324

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

20142

Females

8506

F65-69

8506

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

19981

Females

8505

F65-69

8505

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

21773

Females

9356

F65-69

9356

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

22266

Females

9572

F65-69

9572

Passing Analysis

Category:
Athletes Passed
954
Passed By
4301
Net Change
-3347
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15892
5K → 10K135570-435#15892#16327
10K → 15K110611-501#16327#16828
15K → 20K122714-592#16828#17420
20K → Half20158-138#17420#17558
Half → 25K88563-475#17558#18033
25K → 30K77791-714#18033#18747
30K → 20M51200-149#18747#18896
20M → 21M54141-87#18896#18983
21M → 35K6147+14#18983#18969
35K → 23M78116-38#18969#19007
23M → 24M5395-42#19007#19049
24M → 40K5987-28#19049#19077
40K → 25.2M967-58#19077#19135
25.2M → Finish37141-104#19135#19239
TOTALS9544301-3347
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing