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BOSTON MARATHON 2025

Meredith Griffin

Bib: 12638•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken 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
7:50/mi
24:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
49:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:54/mi
1:17:33
↑ 67↓ 78
20K· 12.43 mi
8:38/mi
1:44:22
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:49:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:41/mi
2:10:57
↑ 66↓ 880.2%
30K· 18.64 mi
10:08/mi
2:42:26
↑ 181↓ 1480.2%
20M
9:02/mi
2:54:42
↑ 64↓ 500.2%
21M
9:57/mi
3:04:39
↑ 106↓ 241.6%
35K· 21.75 mi
10:23/mi
3:12:25
↑ 17↓ 861.7%
23M
9:28/mi
3:24:16
↑ 23↓ 630.6%
24M
10:21/mi
3:34:37
↓ 821.3%
40K· 24.85 mi
9:52/mi
3:43:03
↓ 200.3%
25.2M
10:00/mi
3:46:30
↑ 13↓ 160.2%
Finish· 26.22 mi
8:48/mi
3:55:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:54
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time2:05:34
Pace9:35 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0924:217:5024:21
7:50
-
10K
6.21 mi11:17:4149:538:0225:32
8:13
+0:23
15K
9.32 mi11:45:211:17:338:1927:40
8:54
+0:41
20K
12.43 mi12:12:101:44:228:2426:49
8:38
-0:16
Half
13.11 mi12:17:421:49:548:235:32
8:07
-0:31
25K
15.53 mi12:38:452:10:578:2621:03
8:41
+0:34
30K
18.64 mi13:10:142:42:268:4331:29
10:08
+1:27
20M
20.00 mi13:22:302:54:428:4412:16
9:02
-1:06
21M
21.00 mi13:32:273:04:398:489:57
9:57
+0:55
35K
21.75 mi13:40:133:12:258:517:46
10:23
+0:26
23M
23.00 mi13:52:043:24:168:5311:51
9:28
-0:55
24M
24.00 mi14:02:253:34:378:5710:21
10:21
+0:53
40K
24.85 mi14:10:513:43:038:588:26
9:52
-0:29
25.2M
25.20 mi14:14:183:46:308:593:27
10:00
+0:08
Finish
26.22 mi14:23:163:55:288:598:58
8:48
-1:12

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

7:50 /mi

Average Pace

8:59 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:25

24% of race

Time at Steady Pace

1:36:46

41% of race

Time at Slower Pace

1:23:17

35% of race

Average Pace: 8:59 /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 mi10:52:0924:217:5024:21
7:50
#15173
10K
6.21 mi11:17:4149:538:0225:32
8:13
#16752
15K
9.32 mi11:45:211:17:338:1927:40
8:54
#18539
20K
12.43 mi12:12:101:44:228:2426:49
8:38
#18652
Half
13.11 mi12:17:421:49:548:235:32
8:07
#18538
25K
15.53 mi12:38:452:10:578:2621:03
8:41
#18475
30K
18.64 mi13:10:142:42:268:4331:29
10:08
#19391
20M
20.00 mi13:22:302:54:428:4412:16
9:02
#19204
21M
21.00 mi13:32:273:04:398:489:57
9:57
#19138
35K
21.75 mi13:40:133:12:258:517:46
10:23
#19357
23M
23.00 mi13:52:043:24:168:5311:51
9:28
#19314
24M
24.00 mi14:02:253:34:378:5710:21
10:21
#19526
40K
24.85 mi14:10:513:43:038:588:26
9:52
#19536
25.2M
25.20 mi14:14:183:46:308:593:27
10:00
#19493
Finish
26.22 mi14:23:163:55:288:598:58
8:48
#19436
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi151734643464321599(Top 76%)8328(Top 68%)8328(Top 152%)
10K6.21 mi3.10 mi16752-15795588-9455588-94518035(Top 63%)6317(Top 52%)6317(Top 116%)
15K9.32 mi3.11 mi18539-17876646-10586646-105821599(Top 76%)8328(Top 68%)8328(Top 152%)
20K12.43 mi3.11 mi18652-1136710-646710-6419036(Top 67%)6941(Top 57%)6941(Top 127%)
Half13.11 mi0.68 mi18538+1146643+676643+6716772(Top 59%)5647(Top 46%)5647(Top 103%)
25K15.53 mi2.42 mi18475+636626+176626+1718309(Top 64%)6600(Top 54%)6600(Top 121%)
30K18.64 mi3.11 mi19391-9167182-5567182-55622005(Top 77%)8770(Top 72%)8770(Top 160%)
20M20.00 mi1.36 mi19204+1877095+877095+8716967(Top 60%)6126(Top 50%)6126(Top 112%)
21M21.00 mi1.00 mi19138+667076+197076+1918131(Top 64%)6868(Top 56%)6868(Top 126%)
35K21.75 mi0.75 mi19357-2197223-1477223-14722904(Top 81%)9498(Top 78%)9498(Top 174%)
23M23.00 mi1.25 mi19314+437230-77230-718543(Top 65%)7259(Top 59%)7259(Top 133%)
24M24.00 mi1.00 mi19526-2127376-1467376-14622401(Top 79%)9337(Top 76%)9337(Top 171%)
40K24.85 mi0.85 mi19536-107397-217397-2120002(Top 70%)8156(Top 67%)8156(Top 149%)
25.2M25.20 mi0.35 mi19493+437383+147383+1417141(Top 60%)6679(Top 55%)6679(Top 122%)
Finish26.22 mi1.02 mi19436+577372+117372+1118069(Top 64%)7126(Top 58%)7126(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21599

Females

8328

F18-39

8328

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

18035

Females

6317

F18-39

6317

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21599

Females

8328

F18-39

8328

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19036

Females

6941

F18-39

6941

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16772

Females

5647

F18-39

5647

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18309

Females

6600

F18-39

6600

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

22005

Females

8770

F18-39

8770

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16967

Females

6126

F18-39

6126

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18131

Females

6868

F18-39

6868

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

22904

Females

9498

F18-39

9498

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18543

Females

7259

F18-39

7259

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22401

Females

9337

F18-39

9337

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

20002

Females

8156

F18-39

8156

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17141

Females

6679

F18-39

6679

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18069

Females

7126

F18-39

7126

Passing Analysis

Category:
Athletes Passed
1254
Passed By
5517
Net Change
-4263
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15173
5K → 10K341613-1579#15173#16752
10K → 15K141801-1787#16752#18539
15K → 20K152265-113#18539#18652
20K → Half1173+114#18652#18538
Half → 25K194131+63#18538#18475
25K → 30K52968-916#18475#19391
30K → 20M21427+187#19391#19204
20M → 21M12660+66#19204#19138
21M → 35K17236-219#19138#19357
35K → 23M11774+43#19357#19314
23M → 24M25237-212#19314#19526
24M → 40K5767-10#19526#19536
40K → 25.2M496+43#19536#19493
25.2M → Finish8629+57#19493#19436
TOTALS12545517-4263
📊

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