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BOSTON MARATHON 2025

Joanna Lloyd Davies

Bib: 12543•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 28%
Gender (Female)
#0 / 12228
Top 11%
Masters (Masters Women)
#0 / 6759
Top 3%
Division (F40-44)
#0 / 1718
Top 8%
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
7:18/mi
22:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
45:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:13/mi
1:07:28
↑ 67↓ 78
20K· 12.43 mi
7:17/mi
1:30:07
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:35:04
↑ 19↓ 370.5%
25K· 15.53 mi
7:15/mi
1:52:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:31/mi
2:16:01
↑ 181↓ 1480.2%
20M
7:30/mi
2:26:13
↑ 64↓ 500.2%
21M
7:55/mi
2:34:08
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:39:31
↑ 17↓ 861.7%
23M
7:33/mi
2:48:58
↑ 23↓ 630.6%
24M
7:21/mi
2:56:19
↓ 821.3%
40K· 24.85 mi
7:37/mi
3:02:50
↓ 200.3%
25.2M
8:19/mi
3:05:42
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:13:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:04
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:38:12
Pace7:29 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3822:417:1822:41
7:18
-
10K
6.21 mi11:13:0045:037:1522:22
7:12
-0:06
15K
9.32 mi11:35:251:07:287:1422:25
7:13
+0:01
20K
12.43 mi11:58:041:30:077:1522:39
7:17
+0:04
Half
13.11 mi12:03:011:35:047:154:57
7:15
-0:02
25K
15.53 mi12:20:361:52:397:1517:35
7:15
0:00
30K
18.64 mi12:43:582:16:017:1823:22
7:31
+0:16
20M
20.00 mi12:54:102:26:137:1910:12
7:30
-0:01
21M
21.00 mi13:02:052:34:087:207:55
7:55
+0:25
35K
21.75 mi13:07:282:39:317:205:23
7:12
-0:43
23M
23.00 mi13:16:552:48:587:219:27
7:33
+0:21
24M
24.00 mi13:24:162:56:197:217:21
7:21
-0:12
40K
24.85 mi13:30:473:02:507:216:31
7:37
+0:16
25.2M
25.20 mi13:33:393:05:427:222:52
8:19
+0:42
Finish
26.22 mi13:41:133:13:167:237:34
7:26
-0:53

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

7:12 /mi

Average Pace

7:23 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:24

99% of race

Time at Steady Pace

2:52

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:22 /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 mi10:50:3822:417:1822:41
7:18
#10383
10K
6.21 mi11:13:0045:037:1522:22
7:12
#9886
15K
9.32 mi11:35:251:07:287:1422:25
7:13
#9648
20K
12.43 mi11:58:041:30:077:1522:39
7:17
#9429
Half
13.11 mi12:03:011:35:047:154:57
7:15
#9419
25K
15.53 mi12:20:361:52:397:1517:35
7:15
#9149
30K
18.64 mi12:43:582:16:017:1823:22
7:31
#8802
20M
20.00 mi12:54:102:26:137:1910:12
7:30
#8616
21M
21.00 mi13:02:052:34:087:207:55
7:55
#8460
35K
21.75 mi13:07:282:39:317:205:23
7:12
#8352
23M
23.00 mi13:16:552:48:587:219:27
7:33
#8201
24M
24.00 mi13:24:162:56:197:217:21
7:21
#8082
40K
24.85 mi13:30:473:02:507:216:31
7:37
#8036
25.2M
25.20 mi13:33:393:05:427:222:52
8:19
#8005
Finish
26.22 mi13:41:133:13:167:237:34
7:26
#7993
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi10383197719779262(Top 33%)1543(Top 13%)1543(Top 90%)
10K6.21 mi3.10 mi9886+4971749+2281749+2289490(Top 33%)1595(Top 13%)1595(Top 93%)
15K9.32 mi3.11 mi9648+2381668+811668+819262(Top 33%)1543(Top 13%)1543(Top 90%)
20K12.43 mi3.11 mi9429+2191608+601608+608991(Top 32%)1518(Top 12%)1518(Top 88%)
Half13.11 mi0.68 mi9419+101613-51613-59633(Top 34%)1761(Top 14%)1761(Top 103%)
25K15.53 mi2.42 mi9149+2701520+931520+938024(Top 28%)1228(Top 10%)1228(Top 71%)
30K18.64 mi3.11 mi8802+3471419+1011419+1017904(Top 28%)1358(Top 11%)1358(Top 79%)
20M20.00 mi1.36 mi8616+1861385+341385+347077(Top 25%)1177(Top 10%)1177(Top 69%)
21M21.00 mi1.00 mi8460+1561352+331352+336912(Top 24%)1270(Top 10%)1270(Top 74%)
35K21.75 mi0.75 mi8352+1081327+251327+256620(Top 23%)1144(Top 9%)1144(Top 67%)
23M23.00 mi1.25 mi8201+1511312+151312+156926(Top 24%)1364(Top 11%)1364(Top 79%)
24M24.00 mi1.00 mi8082+1191314-21314-26751(Top 24%)1360(Top 11%)1360(Top 79%)
40K24.85 mi0.85 mi8036+461327-131327-137584(Top 27%)1789(Top 15%)1789(Top 104%)
25.2M25.20 mi0.35 mi8005+311324+31324+37755(Top 27%)1944(Top 16%)1944(Top 113%)
Finish26.22 mi1.02 mi7993+121350-261350-268684(Top 31%)2375(Top 19%)2375(Top 138%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9262

Females

1543

F40-44

1543

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9490

Females

1595

F40-44

1595

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9262

Females

1543

F40-44

1543

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8991

Females

1518

F40-44

1518

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9633

Females

1761

F40-44

1761

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

8024

Females

1228

F40-44

1228

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7904

Females

1358

F40-44

1358

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7077

Females

1177

F40-44

1177

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6912

Females

1270

F40-44

1270

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6620

Females

1144

F40-44

1144

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6926

Females

1364

F40-44

1364

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6751

Females

1360

F40-44

1360

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7584

Females

1789

F40-44

1789

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7755

Females

1944

F40-44

1944

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8684

Females

2375

F40-44

2375

Passing Analysis

Category:
Athletes Passed
2960*
Passed By
569
Net Change
+2390
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10383
5K → 10K576*79+497#10383#9886
10K → 15K30970+238#9886#9648
15K → 20K28768+219#9648#9429
20K → Half3323+10#9429#9419
Half → 25K29727+270#9419#9149
25K → 30K41164+347#9149#8802
30K → 20M20519+186#8802#8616
20M → 21M18125+156#8616#8460
21M → 35K11810+108#8460#8352
35K → 23M18433+151#8352#8201
23M → 24M14223+119#8201#8082
24M → 40K8539+46#8082#8036
40K → 25.2M4716+31#8036#8005
25.2M → Finish8573+12#8005#7993
TOTALS2960*569+2390

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

📊

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